$NRIM
NORTHRIM BANCORP INC Stock $nrim

$nrim Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000116337024000010 Filed on March 08, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$35.81M		$132.0M
YoY Change	20.18%		31.52%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$1.185M	$1.164M	$4.464M
YoY Change	9.72%	9.09%	44.0%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$9.361M		$28.70M
YoY Change	96.54%		450.45%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$10.50M	$8.339M	$31.61M
YoY Change	73.02%	-16.19%	-17.89%
Income Tax	$2.305M	$1.726M	$6.214M
% Of Pretax Income	21.94%	20.7%	19.66%
Net Earnings	$8.199M	$6.613M	$25.39M
YoY Change	69.75%	-23.06%	-17.39%
Net Earnings / Revenue	22.9%		19.25%
Basic Earnings Per Share	$1.49		$4.53
Diluted Earnings Per Share	$1.48	$1.19	$4.49
COMMON SHARES
Basic Shares Outstanding	5.500M shares	5.525M shares	5.601M shares
Diluted Shares Outstanding	5.555M shares		5.661M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$80.36M	$118.5M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$49.70M	$49.79M	$49.79M
YoY Change	30.24%	4.4%	4.4%
Goodwill	$15.02M	$15.02M
YoY Change	0.0%	0.0%
Intangibles	$950.0K	$950.0K
YoY Change	-1.35%	-1.76%
Long-Term Investments		$1.260M
YoY Change		-34.55%
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$2.760B	$2.807B	$2.807B
YoY Change	6.96%	5.07%	5.07%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$8.884M	$9.092M	$9.092M
YoY Change	-6.15%	-7.84%	-7.84%
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$8.884M	$9.092M	$9.092M
YoY Change	-6.15%	-7.84%	-7.84%
LONG-TERM LIABILITIES
Long-Term Debt	$10.31M	$10.31M	$10.31M
YoY Change	0.0%	0.0%	0.0%
Other Long-Term Liabilities	$53.39M	$54.65M	$54.65M
YoY Change	108.77%	71.14%	71.14%
Total Long-Term Liabilities	$63.70M	$64.96M	$64.96M
YoY Change	77.52%	53.78%	53.78%
TOTAL LIABILITIES
Total Short-Term Liabilities	$8.884M	$9.092M	$9.092M
Total Long-Term Liabilities	$63.70M	$64.96M	$64.96M
Total Liabilities	$2.520B	$2.573B	$2.573B
YoY Change	6.99%	4.87%	4.87%
SHAREHOLDERS EQUITY
Retained Earnings	$240.8M	$236.0M
YoY Change	6.75%	5.27%
Common Stock	$5.500M	$5.513M
YoY Change	-3.05%	-3.3%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$239.3M	$234.7M	$234.7M
YoY Change
Total Liabilities & Shareholders Equity	$2.760B	$2.807B	$2.807B
YoY Change	6.96%	5.07%	5.07%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$8.199M	$6.613M	$25.39M
YoY Change	69.75%	-23.06%	-17.39%
Depreciation, Depletion And Amortization	$1.185M	$1.164M	$4.464M
YoY Change	9.72%	9.09%	44.0%
Cash From Operating Activities	-$5.545M	$50.03M	$38.93M
YoY Change	-227.5%	34.18%	-50.17%
INVESTING ACTIVITIES
Capital Expenditures	$1.040M	$716.0K	$6.316M
YoY Change	-8.05%	-58.01%	66.39%
Acquisitions
YoY Change
Other Investing Activities	$23.64M	-$43.66M	-$248.8M
YoY Change	-186.04%	-66.04%	-38.09%
Cash From Investing Activities	$22.60M	-$44.37M	-$255.1M
YoY Change	-178.75%	-65.94%	-37.12%
FINANCING ACTIVITIES
Cash Dividend Paid	$3.355M		$13.60M
YoY Change	-1.93%		28.3%
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$55.22M	1.626M	75.33M
YoY Change	-42.35%	-102.98%	-227.73%
NET CHANGE
Cash From Operating Activities	-$5.545M	50.03M	38.93M
Cash From Investing Activities	$22.60M	-44.37M	-255.1M
Cash From Financing Activities	-$55.22M	1.626M	75.33M
Net Change In Cash	-$38.17M	7.280M	-140.8M
YoY Change	-68.23%	-104.93%	-63.56%
FREE CASH FLOW
Cash From Operating Activities	-$5.545M	$50.03M	$38.93M
Capital Expenditures	$1.040M	$716.0K	$6.316M
Free Cash Flow	-$6.585M	$49.31M	$32.61M
YoY Change	-304.63%	38.6%	-56.13%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	400000	usd
CY2023	us-gaap	Interest Expense InterestExpense	28695000	usd
CY2022	us-gaap	Interest Expense InterestExpense	5213000	usd
CY2022	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	95115000	usd
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	80827000	usd
CY2021	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-4099000	usd
CY2023	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	0	usd
CY2022	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	2002000	usd
CY2021	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	0	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	30741000	usd
CY2023	us-gaap	Dividends Cash DividendsCash	13582000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	937000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	25394000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3424000	usd
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0001163370
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Trading Symbol TradingSymbol	NRIM
CY2020	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	http://fasb.org/us-gaap/2023#AccountingStandardsUpdate201613Member
CY2023Q4	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss Statement Of Financial Position Extensible List FinancingReceivableAccruedInterestAfterAllowanceForCreditLossStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssets
CY2022Q4	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss Statement Of Financial Position Extensible List FinancingReceivableAccruedInterestAfterAllowanceForCreditLossStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssets
CY2022	us-gaap	Fair Value Recurring Basis Unobservable Input Reconciliation Asset Gain Loss Statement Of Income Extensible List FairValueRecurringBasisUnobservableInputReconciliationAssetGainLossStatementOfIncomeExtensibleList	http://fasb.org/us-gaap/2023#InterestAndFeeIncomeLoansConsumer http://www.northrim.com/20231231#CommercialServicingRevenue
CY2023	us-gaap	Fair Value Recurring Basis Unobservable Input Reconciliation Asset Gain Loss Statement Of Income Extensible List FairValueRecurringBasisUnobservableInputReconciliationAssetGainLossStatementOfIncomeExtensibleList	http://fasb.org/us-gaap/2023#InterestAndFeeIncomeLoansConsumer http://www.northrim.com/20231231#CommercialServicingRevenue
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	000-33501
CY2023	dei	Entity Registrant Name EntityRegistrantName	NORTHRIM BANCORP, INC.
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	AK
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	92-0175752
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	3111 C Street
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Anchorage
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	AK
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	99503
CY2023	dei	City Area Code CityAreaCode	907
CY2023	dei	Local Phone Number LocalPhoneNumber	562-0062
CY2023	dei	Security12g Title Security12gTitle	Common Stock, $1.00 par value
CY2023	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	212552889	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	5499578	shares
CY2023	dei	Auditor Name AuditorName	Moss Adams LLP
CY2023	dei	Auditor Location AuditorLocation	Everett, Washington
CY2023	dei	Auditor Firm AuditorFirmId	659
CY2023Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	27457000	usd
CY2022Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	27747000	usd
CY2023Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	91073000	usd
CY2022Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	231603000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	637936000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	677029000	usd
CY2023Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	13153000	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	10740000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	36750000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	36750000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	2980000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	3816000	usd
CY2023Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	31974000	usd
CY2022Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	27538000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	1789497000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	1501785000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	17270000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	13838000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	1772227000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	1487947000	usd
CY2023Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	36842000	usd
CY2022Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	19994000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	40693000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	37821000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	9092000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	9868000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	15017000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	15017000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	950000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	967000	usd
CY2023Q4	us-gaap	Other Assets OtherAssets	71789000	usd
CY2022Q4	us-gaap	Other Assets OtherAssets	68846000	usd
CY2023Q4	us-gaap	Assets Assets	2807497000	usd
CY2022Q4	us-gaap	Assets Assets	2674318000	usd
CY2023Q4	us-gaap	Demand Deposit Accounts DemandDepositAccounts	749683000	usd
CY2022Q4	us-gaap	Demand Deposit Accounts DemandDepositAccounts	797434000	usd
CY2023Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	927291000	usd
CY2022Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	767686000	usd
CY2023Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	255338000	usd
CY2022Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	320917000	usd
CY2023Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	221492000	usd
CY2022Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	308317000	usd
CY2023Q4	nrim	Time Deposits Less Than250000 TimeDepositsLessThan250000	189106000	usd
CY2022Q4	nrim	Time Deposits Less Than250000 TimeDepositsLessThan250000	115330000	usd
CY2023Q4	nrim	Time Deposits250000 Or More TimeDeposits250000OrMore	142145000	usd
CY2022Q4	nrim	Time Deposits250000 Or More TimeDeposits250000OrMore	77527000	usd
CY2023Q4	us-gaap	Deposits Deposits	2485055000	usd
CY2022Q4	us-gaap	Deposits Deposits	2387211000	usd
CY2023Q4	us-gaap	Other Borrowings OtherBorrowings	13675000	usd
CY2022Q4	us-gaap	Other Borrowings OtherBorrowings	14095000	usd
CY2023Q4	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	10310000	usd
CY2022Q4	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	10310000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	9092000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	9865000	usd
CY2023Q4	us-gaap	Other Liabilities OtherLiabilities	54647000	usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Other Liabilities OtherLiabilities	34208000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	2572779000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	2455689000	usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	1784000	usd
CY2022	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	339000	usd
CY2021	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	320000	usd
CY2022	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	389000	usd
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2023Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	2500000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	2500000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
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CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	10000000	shares
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CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	5700728	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	5700728	shares
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	5513000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	5701000	usd
CY2023Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	9605000	usd
CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	17784000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	236037000	usd
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CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	234718000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	218629000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2807497000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2674318000	usd
CY2023	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	108612000	usd
CY2022	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	82785000	usd
CY2021	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	79241000	usd
CY2023	us-gaap	Interest Income Debt Securities Available For Sale Operating InterestIncomeDebtSecuritiesAvailableForSaleOperating	15833000	usd
CY2022	us-gaap	Interest Income Debt Securities Available For Sale Operating InterestIncomeDebtSecuritiesAvailableForSaleOperating	9679000	usd
CY2021	us-gaap	Interest Income Debt Securities Available For Sale Operating InterestIncomeDebtSecuritiesAvailableForSaleOperating	3339000	usd
CY2023	us-gaap	Dividend Income Equity Securities Operating DividendIncomeEquitySecuritiesOperating	766000	usd
CY2022	us-gaap	Dividend Income Equity Securities Operating DividendIncomeEquitySecuritiesOperating	563000	usd
CY2021	us-gaap	Dividend Income Equity Securities Operating DividendIncomeEquitySecuritiesOperating	440000	usd
CY2023	us-gaap	Interest And Dividend Income Securities Held To Maturity InterestAndDividendIncomeSecuritiesHeldToMaturity	1893000	usd
CY2022	us-gaap	Interest And Dividend Income Securities Held To Maturity InterestAndDividendIncomeSecuritiesHeldToMaturity	1511000	usd
CY2021	us-gaap	Interest And Dividend Income Securities Held To Maturity InterestAndDividendIncomeSecuritiesHeldToMaturity	1037000	usd
CY2023	nrim	Dividends On Federal Home Loan Bank Stock DividendsOnFederalHomeLoanBankStock	203000	usd
CY2022	nrim	Dividends On Federal Home Loan Bank Stock DividendsOnFederalHomeLoanBankStock	125000	usd
CY2021	nrim	Dividends On Federal Home Loan Bank Stock DividendsOnFederalHomeLoanBankStock	102000	usd
CY2023	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	4644000	usd
CY2022	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	5665000	usd
CY2021	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	447000	usd
CY2023	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	131951000	usd
CY2022	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	100328000	usd
CY2021	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	84606000	usd
CY2023	us-gaap	Interest Expense Deposits InterestExpenseDeposits	26511000	usd
CY2022	us-gaap	Interest Expense Deposits InterestExpenseDeposits	4485000	usd
CY2021	us-gaap	Interest Expense Deposits InterestExpenseDeposits	3077000	usd
CY2021	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	382000	usd
CY2021	us-gaap	Interest Expense InterestExpense	3779000	usd
CY2023	nrim	Income Purchased Receivables IncomePurchasedReceivables	4482000	usd
CY2023	nrim	Commercial Servicing Revenue CommercialServicingRevenue	554000	usd
CY2022	nrim	Commercial Servicing Revenue CommercialServicingRevenue	1628000	usd
CY2021	nrim	Commercial Servicing Revenue CommercialServicingRevenue	306000	usd
CY2023	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	120000	usd
CY2023	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	usd
CY2022	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	usd
CY2021	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	67000	usd
CY2023	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	2550000	usd
CY2022	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	2684000	usd
CY2021	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	2902000	usd
CY2022	us-gaap	Noninterest Income NoninterestIncome	34077000	usd
CY2021	us-gaap	Noninterest Income NoninterestIncome	52263000	usd
CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	60412000	usd
CY2023	us-gaap	Professional Fees ProfessionalFees	3128000	usd
CY2023	us-gaap	Marketing Expense MarketingExpense	2929000	usd
CY2022	us-gaap	Marketing Expense MarketingExpense	2747000	usd
CY2023	nrim	Other Real Estate Owned Expense Income Net Rental Income And Gains On Sale OtherRealEstateOwnedExpenseIncomeNetRentalIncomeAndGainsOnSale	-794000	usd
CY2022	nrim	Other Real Estate Owned Expense Income Net Rental Income And Gains On Sale OtherRealEstateOwnedExpenseIncomeNetRentalIncomeAndGainsOnSale	500000	usd
CY2021	nrim	Other Real Estate Owned Expense Income Net Rental Income And Gains On Sale OtherRealEstateOwnedExpenseIncomeNetRentalIncomeAndGainsOnSale	-432000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	17000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	25000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	37000	usd
CY2023	us-gaap	Other Noninterest Expense OtherNoninterestExpense	7426000	usd
CY2022	us-gaap	Other Noninterest Expense OtherNoninterestExpense	6520000	usd
CY2021	us-gaap	Other Noninterest Expense OtherNoninterestExpense	6399000	usd
CY2023	us-gaap	Noninterest Expense NoninterestExpense	94181000	usd
CY2022	us-gaap	Noninterest Expense NoninterestExpense	88852000	usd
CY2021	us-gaap	Noninterest Expense NoninterestExpense	89196000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	31608000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	38494000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	47993000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6214000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7753000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10476000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	25394000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	30741000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	37517000	usd
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.53
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.33
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.07
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.49
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.27
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.00
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5601471	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5765088	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	6180801	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5661460	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5829412	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6249313	shares
CY2023	us-gaap	Net Income Loss NetIncomeLoss	25394000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	37517000	usd
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	17755000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-38283000	usd
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-5564000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-88000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	2409000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	780000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	5023000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-10199000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-1360000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	12644000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-25675000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3424000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	38038000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5066000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	34093000	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	221575000	usd
CY2021	us-gaap	Dividends Cash DividendsCash	9369000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1073000	usd
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-421000	usd
CY2021	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	11534000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	37517000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	237817000	usd
CY2022	us-gaap	Dividends Cash DividendsCash	10562000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	742000	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-277000	usd
CY2022	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	14157000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-25675000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	30741000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	218629000	usd
CY2023	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-260000	usd
CY2023	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	9044000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	12644000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	25394000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	234718000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	30741000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	37517000	usd
CY2023	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	usd
CY2022	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	usd
CY2021	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	67000	usd
CY2023	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	3294000	usd
CY2022	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	3139000	usd
CY2021	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	3276000	usd
CY2023	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	1153000	usd
CY2022	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	1164000	usd
CY2021	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	1161000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	17000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	25000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	37000	usd
CY2023	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-483000	usd
CY2022	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-630000	usd
CY2021	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-529000	usd
CY2023	us-gaap	Increase Decrease In Equity Securities Fv Ni IncreaseDecreaseInEquitySecuritiesFvNi	120000	usd
CY2022	us-gaap	Increase Decrease In Equity Securities Fv Ni IncreaseDecreaseInEquitySecuritiesFvNi	-1119000	usd
CY2021	us-gaap	Increase Decrease In Equity Securities Fv Ni IncreaseDecreaseInEquitySecuritiesFvNi	-101000	usd
CY2023	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-580000	usd
CY2022	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-2110000	usd
CY2021	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	1298000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	937000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	742000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	1073000	usd
CY2023	us-gaap	Increase Decrease In Loans Deferred Income IncreaseDecreaseInLoansDeferredIncome	54000	usd
CY2022	us-gaap	Increase Decrease In Loans Deferred Income IncreaseDecreaseInLoansDeferredIncome	2933000	usd
CY2021	us-gaap	Increase Decrease In Loans Deferred Income IncreaseDecreaseInLoansDeferredIncome	192000	usd
CY2023	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3842000	usd
CY2022	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	1846000	usd
CY2021	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-4099000	usd
CY2023	nrim	Payments To Acquire Mortgage Servicing Rights Msr Operating Activities PaymentsToAcquireMortgageServicingRightsMSROperatingActivities	3616000	usd
CY2022	nrim	Payments To Acquire Mortgage Servicing Rights Msr Operating Activities PaymentsToAcquireMortgageServicingRightsMSROperatingActivities	4623000	usd
CY2021	nrim	Payments To Acquire Mortgage Servicing Rights Msr Operating Activities PaymentsToAcquireMortgageServicingRightsMSROperatingActivities	6088000	usd
CY2023	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	2687000	usd
CY2022	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	-288000	usd
CY2021	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	3582000	usd
CY2023	nrim	Increase Decrease In Fair Value Of Commercial Servicing Assets IncreaseDecreaseInFairValueOfCommercialServicingAssets	62000	usd
CY2022	nrim	Increase Decrease In Fair Value Of Commercial Servicing Assets IncreaseDecreaseInFairValueOfCommercialServicingAssets	-809000	usd
CY2021	nrim	Increase Decrease In Fair Value Of Commercial Servicing Assets IncreaseDecreaseInFairValueOfCommercialServicingAssets	437000	usd
CY2023	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	7828000	usd
CY2022	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	13873000	usd
CY2021	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	36436000	usd
CY2023	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	379546000	usd
CY2022	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	645518000	usd
CY2021	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	1227150000	usd
CY2023	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	376154000	usd
CY2022	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	585533000	usd
CY2021	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	1118186000	usd
CY2023	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	929000	usd
CY2022	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-414000	usd
CY2021	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	685000	usd
CY2023	nrim	Impairment On Other Real Estate Owned ImpairmentOnOtherRealEstateOwned	123000	usd
CY2022	nrim	Impairment On Other Real Estate Owned ImpairmentOnOtherRealEstateOwned	0	usd
CY2021	nrim	Impairment On Other Real Estate Owned ImpairmentOnOtherRealEstateOwned	0	usd
CY2023	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	2021000	usd
CY2022	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	3091000	usd
CY2021	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-1133000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-4344000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-5528000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-12739000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	7185000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-3703000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-9695000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	38925000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	78123000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	111989000	usd
CY2023	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	26030000	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	302668000	usd
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	320501000	usd
CY2023	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	2297000	usd
CY2022	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	3934000	usd
CY2021	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	493000	usd
CY2023	nrim	Payments For Purchase Of Federal Home Loan Bank Stock PaymentsForPurchaseOfFederalHomeLoanBankStock	5703000	usd
CY2022	nrim	Payments For Purchase Of Federal Home Loan Bank Stock PaymentsForPurchaseOfFederalHomeLoanBankStock	730000	usd
CY2021	nrim	Payments For Purchase Of Federal Home Loan Bank Stock PaymentsForPurchaseOfFederalHomeLoanBankStock	573000	usd
CY2023	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	usd
CY2022	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	16750000	usd
CY2021	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	10000000	usd
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	82398000	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	13417000	usd
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	135365000	usd
CY2023	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	0	usd
CY2022	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	488000	usd
CY2021	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	1084000	usd
CY2023	nrim	Proceeds From Redemption Of Federal Home Loan Bank Stock ProceedsFromRedemptionOfFederalHomeLoanBankStock	6539000	usd
CY2022	nrim	Proceeds From Redemption Of Federal Home Loan Bank Stock ProceedsFromRedemptionOfFederalHomeLoanBankStock	21000	usd
CY2021	nrim	Proceeds From Redemption Of Federal Home Loan Bank Stock ProceedsFromRedemptionOfFederalHomeLoanBankStock	17000	usd
CY2023	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	16848000	usd
CY2022	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	13007000	usd
CY2021	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	-6935000	usd
CY2023	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	287893000	usd
CY2022	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	83839000	usd
CY2021	us-gaap	Proceeds From Loan And Lease Originations And Principal Collections1 ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections1	28975000	usd
CY2023	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	1079000	usd
CY2022	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	5224000	usd
CY2021	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	2610000	usd
CY2023	us-gaap	Payments For Software PaymentsForSoftware	150000	usd
CY2022	us-gaap	Payments For Software PaymentsForSoftware	51000	usd
CY2021	us-gaap	Payments For Software PaymentsForSoftware	170000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	6166000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3796000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2338000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-255071000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-405625000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-159089000	usd
CY2023	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	97844000	usd
CY2022	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-34420000	usd
CY2021	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	596650000	usd
CY2023	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	194500000	usd
CY2022	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	0	usd
CY2021	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	0	usd
CY2023	us-gaap	Repayments Of Debt RepaymentsOfDebt	194920000	usd
CY2022	us-gaap	Repayments Of Debt RepaymentsOfDebt	413000	usd
CY2021	us-gaap	Repayments Of Debt RepaymentsOfDebt	309000	usd
CY2023	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	555000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	586000	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1543000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	9044000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	14157000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	11534000	usd
CY2023	us-gaap	Payments Of Dividends PaymentsOfDividends	13609000	usd
CY2022	us-gaap	Payments Of Dividends PaymentsOfDividends	10571000	usd
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	9388000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	75326000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-58975000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	576962000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-140820000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-386477000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	529862000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	259350000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	645827000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	115965000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	118530000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	259350000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	645827000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2032000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2015000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	6380000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	28547000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	5190000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	3813000	usd
CY2023	nrim	Non Cash Commitment To Invest In Low Income Housing Tax Credit Partnerships NonCashCommitmentToInvestInLowIncomeHousingTaxCreditPartnerships	14273000	usd
CY2022	nrim	Non Cash Commitment To Invest In Low Income Housing Tax Credit Partnerships NonCashCommitmentToInvestInLowIncomeHousingTaxCreditPartnerships	0	usd
CY2021	nrim	Non Cash Commitment To Invest In Low Income Housing Tax Credit Partnerships NonCashCommitmentToInvestInLowIncomeHousingTaxCreditPartnerships	0	usd
CY2023	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	273000	usd
CY2022	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	0	usd
CY2021	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	274000	usd
CY2023	nrim	Real Estate Owned Loans Originated To Finance Sale Of Other Real Estate Owned RealEstateOwnedLoansOriginatedToFinanceSaleOfOtherRealEstateOwned	0	usd
CY2022	nrim	Real Estate Owned Loans Originated To Finance Sale Of Other Real Estate Owned RealEstateOwnedLoansOriginatedToFinanceSaleOfOtherRealEstateOwned	0	usd
CY2021	nrim	Real Estate Owned Loans Originated To Finance Sale Of Other Real Estate Owned RealEstateOwnedLoansOriginatedToFinanceSaleOfOtherRealEstateOwned	1012000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	423000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1128000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	79000	usd
CY2023Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	110000	usd
CY2022Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	85000	usd
CY2021Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	92000	usd
CY2023	nrim	Cumulative Effect Adjustment To Retained Earnings CumulativeEffectAdjustmentToRetainedEarnings	0	usd
CY2022	nrim	Cumulative Effect Adjustment To Retained Earnings CumulativeEffectAdjustmentToRetainedEarnings	0	usd
CY2021	nrim	Cumulative Effect Adjustment To Retained Earnings CumulativeEffectAdjustmentToRetainedEarnings	2400000	usd
CY2023	us-gaap	Use Of Estimates UseOfEstimates	The Company prepares its consolidated financial statements in conformity with accounting principles generally accepted in the United States and prevailing practices within the banking industry. The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of income, gains, expenses, and losses during the reporting periods. Actual results could differ from those estimates. Significant estimates include the allowance for credit losses (“ACL”), valuation of goodwill and other intangibles, and valuation of mortgage servicing rights (“MSRs”).
CY2023Q4	nrim	Number Of Trust NumberOfTrust	1	trust
CY2023	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2023	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	Certain reclassifications have been made to prior year amounts to maintain consistency with the current year with no impact on net income or total shareholders’ equity.
CY2023	nrim	Maturity Period Of Securities At Acquisition MaturityPeriodOfSecuritiesAtAcquisition	P90D
CY2023	us-gaap	Marketing Expense MarketingExpense	2900000	usd
CY2022	us-gaap	Marketing Expense MarketingExpense	2700000	usd
CY2021	us-gaap	Marketing Expense MarketingExpense	2700000	usd
CY2023	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2023	us-gaap	Net Income Loss NetIncomeLoss	25394000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	30741000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	37517000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5601000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5765000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	6181000	shares
CY2023	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	60000	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	64000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	68000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5661000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5829000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6249000	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.53
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.33
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.07
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.49
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.27
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.00
CY2023	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	Substantially all of the Company’s business is derived from the Anchorage, Matanuska-Susitna Valley, Fairbanks, Kenai Peninsula, Kodiak, Nome, and Southeast areas of Alaska. As such, the Company’s growth and operations depend upon the economic conditions of Alaska and these specific markets. These areas rely primarily upon the natural resources industries, particularly oil production, as well as tourism, government and U.S. military spending for their economic success. A significant majority of the unrestricted revenues of the Alaska state government are currently funded through various taxes and royalties on the oil industry. The Company’s business is and will remain sensitive to economic factors that relate to these industries and local and regional business conditions. As a result, local or regional economic downturns, or downturns that disproportionately affect one or more of the key industries in regions served by the Company, may have a more pronounced effect upon its business than they might on an institution that is less geographically concentrated. The extent of the <div style="margin-bottom:11pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">future impact of these events on economic and business conditions cannot be predicted; however, prolonged or acute fluctuations could have a material and adverse impact upon the Company’s results of operation and financial condition.</span></div>
CY2023Q4	nrim	Loans Receivable Commercial And Construction LoansReceivableCommercialAndConstruction	590700000	usd
CY2022Q4	nrim	Loans Receivable Commercial And Construction LoansReceivableCommercialAndConstruction	501300000	usd
CY2023Q4	nrim	Number Of Large Borrowing Relationships NumberOfLargeBorrowingRelationships	50	large_borrower
CY2023Q4	nrim	Unfunded Commitments To Large Borrowers UnfundedCommitmentsToLargeBorrowers	261200000	usd
CY2023Q4	us-gaap	Compensating Balance Amount CompensatingBalanceAmount	300000	usd
CY2022Q4	us-gaap	Compensating Balance Amount CompensatingBalanceAmount	300000	usd
CY2022Q4	nrim	Compensating Balance Amount Initial Margin On Interest Rate Swap CompensatingBalanceAmountInitialMarginOnInterestRateSwap	100000	usd
CY2023Q4	nrim	Compensating Balance Amount Initial Margin On Interest Rate Swap CompensatingBalanceAmountInitialMarginOnInterestRateSwap	100000	usd
CY2022Q4	nrim	Compensating Balance Amount Fair Value Exposure On Interest Rate Swap CompensatingBalanceAmountFairValueExposureOnInterestRateSwap	30000	usd
CY2023Q4	nrim	Compensating Balance Amount Fair Value Exposure On Interest Rate Swap CompensatingBalanceAmountFairValueExposureOnInterestRateSwap	30000	usd
CY2023	nrim	Interest Bearing Deposits In Other Banks Maximum Maturity Period InterestBearingDepositsInOtherBanksMaximumMaturityPeriod	P1Y
CY2023Q4	nrim	Interest Bearing Deposits At Federal Reserve Bank InterestBearingDepositsAtFederalReserveBank	90922000	usd
CY2022Q4	nrim	Interest Bearing Deposits At Federal Reserve Bank InterestBearingDepositsAtFederalReserveBank	231186000	usd
CY2023Q4	nrim	Interest Bearing Deposits At Federal Home Loan Bank InterestBearingDepositsAtFederalHomeLoanBank	21000	usd
CY2022Q4	nrim	Interest Bearing Deposits At Federal Home Loan Bank InterestBearingDepositsAtFederalHomeLoanBank	287000	usd
CY2023Q4	nrim	Other Interest Bearing Deposits At Other Institutions OtherInterestBearingDepositsAtOtherInstitutions	130000	usd
CY2022Q4	nrim	Other Interest Bearing Deposits At Other Institutions OtherInterestBearingDepositsAtOtherInstitutions	130000	usd
CY2023Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	91073000	usd
CY2022Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	231603000	usd
CY2023Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	13200000	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	10700000	usd
CY2023	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	120000	usd
CY2022	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-1119000	usd
CY2021	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-101000	usd
CY2023	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	usd
CY2022	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	usd
CY2021	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	67000	usd
CY2023	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	120000	usd
CY2022	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-1119000	usd
CY2021	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-34000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	662268000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	491000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	24823000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	637936000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	719117000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	38000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	42126000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	677029000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	36750000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	3337000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	33413000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	36750000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	usd
CY2022Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	4111000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	32639000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	13906000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	94000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	579138000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	24729000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	593044000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	24823000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	318639000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	9576000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	342354000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	32550000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	660993000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	42126000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	2	security
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	38	security
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	72	security
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	47	security
CY2023Q4	nrim	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Less Than12 Months Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureLessThan12MonthsNumberOfPositions	0	security
CY2022Q4	nrim	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Less Than12 Months Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureLessThan12MonthsNumberOfPositions	3	security
CY2023Q4	nrim	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure12 Months Or Longer Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosure12MonthsOrLongerNumberOfPositions	5	security
CY2022Q4	nrim	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure12 Months Or Longer Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosure12MonthsOrLongerNumberOfPositions	2	security
CY2023Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	180100000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	59300000	usd
CY2023	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	usd
CY2023	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	usd
CY2023	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	usd
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	usd
CY2022	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	usd
CY2022	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	usd
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	usd
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	usd
CY2021	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	usd
CY2023	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	15815000	usd
CY2022	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	9661000	usd
CY2021	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	3321000	usd
CY2023	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	18000	usd
CY2022	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	18000	usd
CY2021	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	18000	usd
CY2023	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	15833000	usd
CY2022	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	9679000	usd
CY2021	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	3339000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	1789497000	usd
CY2023Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	1798053000	usd
CY2023Q4	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	8556000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	1501785000	usd
CY2022Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	1510395000	usd
CY2022Q4	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	8610000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	17270000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	13838000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	1772227000	usd
CY2023Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	1798053000	usd
CY2023Q4	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	8556000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	1487947000	usd
CY2022Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	1510395000	usd
CY2022Q4	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	8610000	usd
CY2022Q4	us-gaap	Financing Receivable Unamortized Loan Fee Cost FinancingReceivableUnamortizedLoanFeeCost	-8600000	usd
CY2023Q4	us-gaap	Financing Receivable Unamortized Loan Fee Cost FinancingReceivableUnamortizedLoanFeeCost	-8600000	usd
CY2023Q4	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	7400000	usd
CY2022Q4	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	5500000	usd
CY2023Q4	nrim	Financing Receivables Percentage Of Total Loans Excluding Ppp Loans Secured By Real Estate FinancingReceivablesPercentageOfTotalLoansExcludingPPPLoansSecuredByRealEstate	0.72
CY2023Q4	nrim	Financing Receivables Percentage Of Total Loans Excluding Ppp Loans Unsecured FinancingReceivablesPercentageOfTotalLoansExcludingPPPLoansUnsecured	0.04
CY2023Q4	nrim	Financing Receivables Percentage Of Total Loans Excluding Ppp Loans Secured For General Commercial Uses FinancingReceivablesPercentageOfTotalLoansExcludingPPPLoansSecuredForGeneralCommercialUses	0.24
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	13838000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	3394000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	435000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	473000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	17270000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	11739000	usd
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	972000	usd
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	509000	usd
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	1636000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	13838000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	17300000	usd
CY2023Q4	nrim	Financing Receivables Allowance For Credit Loss Excluding Accrued Interest Percentage Of Portfolio Loans FinancingReceivablesAllowanceForCreditLossExcludingAccruedInterestPercentageOfPortfolioLoans	0.0097
CY2023Q4	nrim	Financing Receivables Allowance For Credit Loss Excluding Accrued Interest Percentage Of Portfolio Loans Net Of Government Guarantees FinancingReceivablesAllowanceForCreditLossExcludingAccruedInterestPercentageOfPortfolioLoansNetOfGovernmentGuarantees	0.0102
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	13800000	usd
CY2022Q4	nrim	Financing Receivables Allowance For Credit Loss Excluding Accrued Interest Percentage Of Portfolio Loans FinancingReceivablesAllowanceForCreditLossExcludingAccruedInterestPercentageOfPortfolioLoans	0.0092
CY2022Q4	nrim	Financing Receivables Allowance For Credit Loss Excluding Accrued Interest Percentage Of Portfolio Loans Net Of Government Guarantees FinancingReceivablesAllowanceForCreditLossExcludingAccruedInterestPercentageOfPortfolioLoansNetOfGovernmentGuarantees	0.0099
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	429289000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	468697000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	285900000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	194083000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	105717000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	305811000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	1789497000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	488572000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	317745000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	220319000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	117187000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	51825000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	306137000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	1501785000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	1789497000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest90 Days Or More Past Due Still Accruing FinancingReceivableExcludingAccruedInterest90DaysOrMorePastDueStillAccruing	0	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	1501785000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest90 Days Or More Past Due Still Accruing FinancingReceivableExcludingAccruedInterest90DaysOrMorePastDueStillAccruing	0	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual FinancingReceivableExcludingAccruedInterestNonaccrual	6069000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual No Allowance FinancingReceivableExcludingAccruedInterestNonaccrualNoAllowance	5965000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual FinancingReceivableExcludingAccruedInterestNonaccrual	7076000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual No Allowance FinancingReceivableExcludingAccruedInterestNonaccrualNoAllowance	7014000	usd
CY2023	nrim	Financing Receivable Recorded Investment Interest Income That Would Have Been Earned On Nonaccrual Loans FinancingReceivableRecordedInvestmentInterestIncomeThatWouldHaveBeenEarnedOnNonaccrualLoans	499000	usd
CY2022	nrim	Financing Receivable Recorded Investment Interest Income That Would Have Been Earned On Nonaccrual Loans FinancingReceivableRecordedInvestmentInterestIncomeThatWouldHaveBeenEarnedOnNonaccrualLoans	434000	usd
CY2021	nrim	Financing Receivable Recorded Investment Interest Income That Would Have Been Earned On Nonaccrual Loans FinancingReceivableRecordedInvestmentInterestIncomeThatWouldHaveBeenEarnedOnNonaccrualLoans	744000	usd
CY2023	us-gaap	Financing Receivable Accrued Interest Writeoff FinancingReceivableAccruedInterestWriteoff	8000	usd
CY2022	us-gaap	Financing Receivable Accrued Interest Writeoff FinancingReceivableAccruedInterestWriteoff	10000	usd
CY2023	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	656000	usd
CY2022	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	2200000	usd
CY2021	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	1600000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Modified Accumulated FinancingReceivableExcludingAccruedInterestModifiedAccumulated	5100000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Modified Period FinancingReceivableExcludingAccruedInterestModifiedPeriod	4970000	usd
CY2023	us-gaap	Financing Receivable Modification To Total Financing Receivables Excluding Accrued Interest Percent FinancingReceivableModificationToTotalFinancingReceivablesExcludingAccruedInterestPercent	0.0028
CY2023Q4	nrim	Financing Receivable Excluding Accrued Interest Modified Outstanding Commitments FinancingReceivableExcludingAccruedInterestModifiedOutstandingCommitments	0	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Modified Accumulated FinancingReceivableExcludingAccruedInterestModifiedAccumulated	2985000	usd
CY2022Q4	nrim	Analysis Of Loan Transactions AnalysisOfLoanTransactions	1996000	usd
CY2021Q4	nrim	Analysis Of Loan Transactions AnalysisOfLoanTransactions	191000	usd
CY2020Q4	nrim	Analysis Of Loan Transactions AnalysisOfLoanTransactions	217000	usd
CY2023	nrim	Analysis Of Loan Transactions Loans Made AnalysisOfLoanTransactionsLoansMade	521000	usd
CY2022	nrim	Analysis Of Loan Transactions Loans Made AnalysisOfLoanTransactionsLoansMade	1886000	usd
CY2021	nrim	Analysis Of Loan Transactions Loans Made AnalysisOfLoanTransactionsLoansMade	0	usd
CY2023	nrim	Analysis Of Loan Transactions Repayment Of Loans AnalysisOfLoanTransactionsRepaymentOfLoans	122000	usd
CY2022	nrim	Analysis Of Loan Transactions Repayment Of Loans AnalysisOfLoanTransactionsRepaymentOfLoans	81000	usd
CY2021	nrim	Analysis Of Loan Transactions Repayment Of Loans AnalysisOfLoanTransactionsRepaymentOfLoans	26000	usd
CY2023Q4	nrim	Analysis Of Loan Transactions AnalysisOfLoanTransactions	2395000	usd
CY2022Q4	nrim	Analysis Of Loan Transactions AnalysisOfLoanTransactions	1996000	usd
CY2021Q4	nrim	Analysis Of Loan Transactions AnalysisOfLoanTransactions	191000	usd
CY2023Q4	nrim	Financing Receivables Unfunded Loan Commitments FinancingReceivablesUnfundedLoanCommitments	120000	usd
CY2022Q4	nrim	Financing Receivables Unfunded Loan Commitments FinancingReceivablesUnfundedLoanCommitments	110000	usd
CY2023	nrim	Purchased Receivables Term Of Receivable PurchasedReceivablesTermOfReceivable	P1Y
CY2022Q4	nrim	Purchased Receivable Past Due Number PurchasedReceivablePastDueNumber	0	purchased_receivable
CY2023Q4	nrim	Purchased Receivable Past Due Number PurchasedReceivablePastDueNumber	0	purchased_receivable
CY2023Q4	nrim	Purchased Receivable Nonperforming Number PurchasedReceivableNonperformingNumber	1	purchased_receivable
CY2022Q4	nrim	Purchased Receivable Nonperforming Number PurchasedReceivableNonperformingNumber	0	purchased_receivable
CY2023Q4	nrim	Mortgage Loans Serviced For Third Party MortgageLoansServicedForThirdParty	1044516000	usd
CY2022Q4	nrim	Mortgage Loans Serviced For Third Party MortgageLoansServicedForThirdParty	898840000	usd
CY2023Q4	nrim	Mortgage Loans Serviced By Third Party Weighted Average Rate Of Note MortgageLoansServicedByThirdPartyWeightedAverageRateOfNote	0.0403
CY2022Q4	nrim	Mortgage Loans Serviced By Third Party Weighted Average Rate Of Note MortgageLoansServicedByThirdPartyWeightedAverageRateOfNote	0.0347
CY2023Q4	nrim	Mortgage Servicing Rights Percent Of Loans Serviced MortgageServicingRightsPercentOfLoansServiced	0.0187
CY2022Q4	nrim	Mortgage Servicing Rights Percent Of Loans Serviced MortgageServicingRightsPercentOfLoansServiced	0.0207
CY2022Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	0	usd
CY2023Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	0	usd
CY2023	nrim	Other Real Estate Owned Expense Income Net Rental Income And Gains On Sale OtherRealEstateOwnedExpenseIncomeNetRentalIncomeAndGainsOnSale	-794000	usd
CY2022	nrim	Other Real Estate Owned Expense Income Net Rental Income And Gains On Sale OtherRealEstateOwnedExpenseIncomeNetRentalIncomeAndGainsOnSale	500000	usd
CY2021	nrim	Other Real Estate Owned Expense Income Net Rental Income And Gains On Sale OtherRealEstateOwnedExpenseIncomeNetRentalIncomeAndGainsOnSale	-432000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	76818000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	70896000	usd
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	36125000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	33075000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	40693000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	37821000	usd
CY2023	us-gaap	Depreciation Depreciation	3300000	usd
CY2022	us-gaap	Depreciation Depreciation	3100000	usd
CY2021	us-gaap	Depreciation Depreciation	3300000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	9100000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	9100000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	9900000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	9900000	usd
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	2818000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	2737000	usd
CY2023	us-gaap	Short Term Lease Cost ShortTermLeaseCost	143000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	37000	usd
CY2023	us-gaap	Lease Cost LeaseCost	2961000	usd
CY2022	us-gaap	Lease Cost LeaseCost	2774000	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	2628000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	2545000	usd
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P10Y4M28D
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P10Y6M7D
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0355
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0330
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	2637000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	2285000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	1130000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	731000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	543000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	3876000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	11202000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	2110000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	9092000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	15017000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	15017000	usd
CY2023Q4	nrim	Finite Lived Core Deposits Net FiniteLivedCoreDepositsNet	0	usd
CY2022Q4	nrim	Finite Lived Core Deposits Net FiniteLivedCoreDepositsNet	17000	usd
CY2023Q4	us-gaap	Indefinite Lived Trade Names IndefiniteLivedTradeNames	950000	usd
CY2022Q4	us-gaap	Indefinite Lived Trade Names IndefiniteLivedTradeNames	950000	usd
CY2023Q4	nrim	Goodwill And Intangible Assets GoodwillAndIntangibleAssets	15967000	usd
CY2022Q4	nrim	Goodwill And Intangible Assets GoodwillAndIntangibleAssets	15984000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	17000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	25000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	37000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	6100000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	6000000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	453000	usd
CY2023Q4	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	27992000	usd
CY2022Q4	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	17289000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	5764000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	11367000	usd
CY2023Q4	us-gaap	Interest Receivable InterestReceivable	11958000	usd
CY2022Q4	us-gaap	Interest Receivable InterestReceivable	9937000	usd
CY2023Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	3837000	usd
CY2022Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	4345000	usd
CY2023Q4	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	2627000	usd
CY2022Q4	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	2358000	usd
CY2023Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1260000	usd
CY2022Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1925000	usd
CY2023Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	1726000	usd
CY2022Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	1749000	usd
CY2023Q4	nrim	Capitalized Software Development Costs For Software Held For Use CapitalizedSoftwareDevelopmentCostsForSoftwareHeldForUse	740000	usd
CY2022Q4	nrim	Capitalized Software Development Costs For Software Held For Use CapitalizedSoftwareDevelopmentCostsForSoftwareHeldForUse	1741000	usd
CY2023Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	2873000	usd
CY2022Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	2841000	usd
CY2023Q4	us-gaap	Other Assets OtherAssets	71789000	usd
CY2022Q4	us-gaap	Other Assets OtherAssets	68846000	usd
CY2023	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	3600000	usd
CY2022	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	3400000	usd
CY2021	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	3500000	usd
CY2023Q4	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	14000000	usd
CY2023Q4	nrim	Qualified Affordable Housing Project Investments Original Commitment QualifiedAffordableHousingProjectInvestmentsOriginalCommitment	57152000	usd
CY2023Q4	nrim	Qualified Affordable Housing Project Investments Life To Date Contributions QualifiedAffordableHousingProjectInvestmentsLifeToDateContributions	43191000	usd
CY2023Q4	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	13961000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	268526000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	56842000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	3633000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	139000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	354000	usd
CY2023Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	1757000	usd
CY2023Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	331251000	usd
CY2023Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	3500000	usd
CY2022Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	3800000	usd
CY2023Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	259000	usd
CY2022Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	1300000	usd
CY2023Q4	nrim	Line Of Credit Facility Ratio Of Eligible Assets To Borrowing Capacity LineOfCreditFacilityRatioOfEligibleAssetsToBorrowingCapacity	0.45
CY2022	nrim	Regulatory Limit On Borrowing Percentage Of Total Assets RegulatoryLimitOnBorrowingPercentageOfTotalAssets	0.35
CY2023	nrim	Regulatory Limit On Borrowing Percentage Of Total Assets RegulatoryLimitOnBorrowingPercentageOfTotalAssets	0.35
CY2023Q4	nrim	Regulatory Limit On Borrowing RegulatoryLimitOnBorrowing	975900000	usd
CY2022Q4	nrim	Regulatory Limit On Borrowing RegulatoryLimitOnBorrowing	929300000	usd
CY2023Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	347400000	usd
CY2023Q4	nrim	Line Of Credit Facility Ratio Of Total Assets To Borrowing Capacity LineOfCreditFacilityRatioOfTotalAssetsToBorrowingCapacity	0.12
CY2023Q4	nrim	Line Of Credit Facility Ratio Of Additional Eligible Assets To Borrowing Capacity LineOfCreditFacilityRatioOfAdditionalEligibleAssetsToBorrowingCapacity	0.45
CY2023Q4	nrim	Line Of Credit Facility Additional Borrowing Capacity Available LineOfCreditFacilityAdditionalBorrowingCapacityAvailable	1250000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	13700000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	14100000	usd
CY2023	nrim	Federal Home Loan Bank Advance Repayment Term FederalHomeLoanBankAdvanceRepaymentTerm	P30Y
CY2023Q4	nrim	Federal Reserve Bank Advances Discount Window FederalReserveBankAdvancesDiscountWindow	0	usd
CY2022Q4	nrim	Federal Reserve Bank Advances Discount Window FederalReserveBankAdvancesDiscountWindow	0	usd
CY2023Q4	nrim	Federal Reserve Banks Bank Term Funding Program Advances Discount Window FederalReserveBanksBankTermFundingProgramAdvancesDiscountWindow	0	usd
CY2022Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	0	usd
CY2023Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	0	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	431000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	441000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	462000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	474000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	11414000	usd
CY2023Q4	us-gaap	Long Term Debt LongTermDebt	13675000	usd
CY2023Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0424
CY2022Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0292
CY2021Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0290
CY2021	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-1360000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3424000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	10199000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-25675000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	5023000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	12644000	usd
CY2023	nrim	Increase Decrease In Deferred Compensation Arrangement IncreaseDecreaseInDeferredCompensationArrangement	-10000	usd
CY2022	nrim	Increase Decrease In Deferred Compensation Arrangement IncreaseDecreaseInDeferredCompensationArrangement	-51000	usd
CY2021	nrim	Increase Decrease In Deferred Compensation Arrangement IncreaseDecreaseInDeferredCompensationArrangement	173000	usd
CY2023Q4	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	1800000	usd
CY2022Q4	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	1800000	usd
CY2023Q4	us-gaap	Accrued Employee Benefits Current And Noncurrent AccruedEmployeeBenefitsCurrentAndNoncurrent	1600000	usd
CY2022Q4	us-gaap	Accrued Employee Benefits Current And Noncurrent AccruedEmployeeBenefitsCurrentAndNoncurrent	1400000	usd
CY2023	nrim	Duration Limit On Stop Loss Insurance Per Individual DurationLimitOnStopLossInsurancePerIndividual	P1Y
CY2023	nrim	Limit On Stop Loss Insurance Per Covered Individual In Year LimitOnStopLossInsurancePerCoveredIndividualInYear	200000	usd
CY2023Q4	us-gaap	Commitments Fair Value Disclosure CommitmentsFairValueDisclosure	445879000	usd
CY2022Q4	us-gaap	Commitments Fair Value Disclosure CommitmentsFairValueDisclosure	464972000	usd
CY2023Q4	nrim	Unfunded Lending Commitment UnfundedLendingCommitment	22926000	usd
CY2022Q4	nrim	Unfunded Lending Commitment UnfundedLendingCommitment	29065000	usd
CY2023Q4	nrim	Standby Letters Of Credit Fair Value Disclosure StandbyLettersOfCreditFairValueDisclosure	26794000	usd
CY2022Q4	nrim	Standby Letters Of Credit Fair Value Disclosure StandbyLettersOfCreditFairValueDisclosure	3679000	usd
CY2023Q4	nrim	Loan Repurchase Due To Deficiency Accumulated Two Year Total LoanRepurchaseDueToDeficiencyAccumulatedTwoYearTotal	18	loan
CY2023Q4	nrim	Unfunded Commitments UnfundedCommitments	495600000	usd
CY2022Q4	nrim	Unfunded Commitments UnfundedCommitments	497700000	usd
CY2023Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	2400000	usd
CY2022Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	2000000	usd
CY2023	nrim	Other Real Estate Owned Proceeds Received From Government Guarantee OtherRealEstateOwnedProceedsReceivedFromGovernmentGuarantee	929000	usd
CY2023	nrim	Derivatives Value Shortfalls Threshold Triggering Additional Collateral Requirements DerivativesValueShortfallsThresholdTriggeringAdditionalCollateralRequirements	250000	usd
CY2023Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	566000	usd
CY2022Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	553000	usd
CY2023Q4	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	218000000	usd
CY2022Q4	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	226200000	usd
CY2023Q4	us-gaap	Derivative Number Of Instruments Held DerivativeNumberOfInstrumentsHeld	40	swap
CY2022Q4	us-gaap	Derivative Number Of Instruments Held DerivativeNumberOfInstrumentsHeld	40	swap
CY2023	us-gaap	Interest And Fee Income Loans Commercial InterestAndFeeIncomeLoansCommercial	61000	usd
CY2022	us-gaap	Interest And Fee Income Loans Commercial InterestAndFeeIncomeLoansCommercial	157000	usd
CY2021	us-gaap	Interest And Fee Income Loans Commercial InterestAndFeeIncomeLoansCommercial	452000	usd
CY2023	us-gaap	Payments Of Dividends PaymentsOfDividends	13600000	usd
CY2022	us-gaap	Payments Of Dividends PaymentsOfDividends	10600000	usd
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	9400000	usd
CY2023	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	2.40
CY2022	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.82
CY2021	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.50
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	10.27
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P8Y
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0133
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0386
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.3646
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	120195	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	34.21
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	0	shares
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	0
CY2023	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	15585	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	28.54
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	104610	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	35.06
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y18D
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	100830	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	106714	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	107553	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	34.80
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	33.78
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	32.63
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	2300000	usd
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	2300000	usd
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	2200000	usd
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	2200000	usd
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	1200000	usd
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	1200000	usd
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	355000	usd
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	307000	usd
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	969000	usd
CY2005Q4	us-gaap	Proceeds From Repurchase Of Trust Preferred Securities ProceedsFromRepurchaseOfTrustPreferredSecurities	10000000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	1120000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	388000	usd
CY2023	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	1508000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	944000	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	192000	usd
CY2023	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	1136000	usd
CY2023	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	3570000	usd
CY2023	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	0	usd
CY2023	us-gaap	Other Income Tax Expense Benefit Continuing Operations OtherIncomeTaxExpenseBenefitContinuingOperations	3570000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	5634000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	580000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6214000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	1412000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1412000	usd
CY2022	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	2824000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	860000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	698000	usd
CY2022	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	1558000	usd
CY2022	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	3371000	usd
CY2022	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	0	usd
CY2022	us-gaap	Other Income Tax Expense Benefit Continuing Operations OtherIncomeTaxExpenseBenefitContinuingOperations	3371000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	5643000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2110000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7753000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	5090000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-869000	usd
CY2021	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	4221000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3182000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-429000	usd
CY2021	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	2753000	usd
CY2021	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	3502000	usd
CY2021	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	0	usd
CY2021	us-gaap	Other Income Tax Expense Benefit Continuing Operations OtherIncomeTaxExpenseBenefitContinuingOperations	3502000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	11774000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1298000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10476000	usd
CY2023	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	6638000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	8084000	usd
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	10079000	usd
CY2023	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	897000	usd
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1231000	usd
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2175000	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	459000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	358000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	238000	usd
CY2023	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	3192000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	3191000	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	3163000	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	3627000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	3725000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	3694000	usd
CY2023	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-427000	usd
CY2022	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-670000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-1009000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6214000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7753000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10476000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	5347000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	4263000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	3126000	usd
CY2023Q4	nrim	Deferred Tax Assets Loan Fees Net Of Costs DeferredTaxAssetsLoanFeesNetOfCosts	649000	usd
CY2022Q4	nrim	Deferred Tax Assets Loan Fees Net Of Costs DeferredTaxAssetsLoanFeesNetOfCosts	778000	usd
CY2021Q4	nrim	Deferred Tax Assets Loan Fees Net Of Costs DeferredTaxAssetsLoanFeesNetOfCosts	1956000	usd
CY2023Q4	nrim	Deferred Tax Assets Interest Income Nonaccrual Loans DeferredTaxAssetsInterestIncomeNonaccrualLoans	356000	usd
CY2022Q4	nrim	Deferred Tax Assets Interest Income Nonaccrual Loans DeferredTaxAssetsInterestIncomeNonaccrualLoans	370000	usd
CY2021Q4	nrim	Deferred Tax Assets Interest Income Nonaccrual Loans DeferredTaxAssetsInterestIncomeNonaccrualLoans	482000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	1674000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	1822000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	1344000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	466000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	404000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	406000	usd
CY2023Q4	nrim	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	2585000	usd
CY2022Q4	nrim	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	2805000	usd
CY2021Q4	nrim	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	3117000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	941000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1286000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1826000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	7057000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	11976000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	1270000	usd
CY2023Q4	nrim	Deferred Tax Asset Equity Securities Unrealized Loss DeferredTaxAssetEquitySecuritiesUnrealizedLoss	176000	usd
CY2022Q4	nrim	Deferred Tax Asset Equity Securities Unrealized Loss DeferredTaxAssetEquitySecuritiesUnrealizedLoss	178000	usd
CY2021Q4	nrim	Deferred Tax Asset Equity Securities Unrealized Loss DeferredTaxAssetEquitySecuritiesUnrealizedLoss	0	usd
CY2023Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	280000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	285000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	837000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	19531000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	24167000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	14364000	usd
CY2023Q4	nrim	Deferred Tax Liabilities Intangible Amortization DeferredTaxLiabilitiesIntangibleAmortization	2746000	usd
CY2022Q4	nrim	Deferred Tax Liabilities Intangible Amortization DeferredTaxLiabilitiesIntangibleAmortization	1886000	usd
CY2021Q4	nrim	Deferred Tax Liabilities Intangible Amortization DeferredTaxLiabilitiesIntangibleAmortization	1453000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	6065000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	5789000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	4172000	usd
CY2023Q4	nrim	Deferred Tax Liability Depreciation And Amortization DeferredTaxLiabilityDepreciationAndAmortization	1463000	usd
CY2022Q4	nrim	Deferred Tax Liability Depreciation And Amortization DeferredTaxLiabilityDepreciationAndAmortization	1261000	usd
CY2021Q4	nrim	Deferred Tax Liability Depreciation And Amortization DeferredTaxLiabilityDepreciationAndAmortization	1515000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	2585000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	2806000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	3128000	usd
CY2023Q4	nrim	Deferred Tax Liabilities Debt Securities Available For Sale Unrealized Gain DeferredTaxLiabilitiesDebtSecuritiesAvailableForSaleUnrealizedGain	139000	usd
CY2022Q4	nrim	Deferred Tax Liabilities Debt Securities Available For Sale Unrealized Gain DeferredTaxLiabilitiesDebtSecuritiesAvailableForSaleUnrealizedGain	11000	usd
CY2021Q4	nrim	Deferred Tax Liabilities Debt Securities Available For Sale Unrealized Gain DeferredTaxLiabilitiesDebtSecuritiesAvailableForSaleUnrealizedGain	189000	usd
CY2023Q4	nrim	Deferred Tax Liabilities Equity Securities Fvni Unrealized Gain DeferredTaxLiabilitiesEquitySecuritiesFVNIUnrealizedGain	50000	usd
CY2022Q4	nrim	Deferred Tax Liabilities Equity Securities Fvni Unrealized Gain DeferredTaxLiabilitiesEquitySecuritiesFVNIUnrealizedGain	18000	usd
CY2021Q4	nrim	Deferred Tax Liabilities Equity Securities Fvni Unrealized Gain DeferredTaxLiabilitiesEquitySecuritiesFVNIUnrealizedGain	159000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	719000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1029000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	470000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	13767000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	12800000	usd
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CY2023Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	5764000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	11367000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	3278000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	637936000	usd
CY2023Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	13153000	usd
CY2023Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	33942000	usd
CY2023Q4	us-gaap	Financial Liabilities Fair Value Disclosure FinancialLiabilitiesFairValueDisclosure	10483000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	677029000	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	10740000	usd
CY2022Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	35382000	usd
CY2022Q4	us-gaap	Financial Liabilities Fair Value Disclosure FinancialLiabilitiesFairValueDisclosure	12728000	usd
CY2022Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	21204000	usd
CY2023	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-3738000	usd
CY2023	nrim	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases And Issuances FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesAndIssuances	11196000	usd
CY2023	nrim	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales And Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesAndSettlements	6556000	usd
CY2023Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	22106000	usd
CY2021Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	16195000	usd
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-418000	usd
CY2022	nrim	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases And Issuances FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesAndIssuances	16999000	usd
CY2022	nrim	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales And Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesAndSettlements	11572000	usd
CY2022Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	21204000	usd
CY2023	nrim	Assets Fair Value Disclosure Nonrecurring Gain Loss AssetsFairValueDisclosureNonrecurringGainLoss	-123000	usd
CY2022	nrim	Assets Fair Value Disclosure Nonrecurring Gain Loss AssetsFairValueDisclosureNonrecurringGainLoss	0	usd
CY2021	nrim	Assets Fair Value Disclosure Nonrecurring Gain Loss AssetsFairValueDisclosureNonrecurringGainLoss	13000	usd
CY2023	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2023	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	131951000	usd
CY2023	us-gaap	Interest Expense InterestExpense	28695000	usd
CY2023	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	103256000	usd
CY2023	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3842000	usd
CY2023	us-gaap	Noninterest Income NoninterestIncome	26375000	usd
CY2023	us-gaap	Noninterest Expense NoninterestExpense	94181000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	31608000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6214000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	25394000	usd
CY2023Q4	us-gaap	Assets Assets	2807497000	usd
CY2023Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	31974000	usd
CY2022	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	100328000	usd
CY2022	us-gaap	Interest Expense InterestExpense	5213000	usd
CY2022	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	95115000	usd
CY2022	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	1846000	usd
CY2022	us-gaap	Noninterest Income NoninterestIncome	34077000	usd
CY2022	us-gaap	Noninterest Expense NoninterestExpense	88852000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	38494000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7753000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	30741000	usd
CY2022Q4	us-gaap	Assets Assets	2674318000	usd
CY2022Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	27538000	usd
CY2021	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	84606000	usd
CY2021	us-gaap	Interest Expense InterestExpense	3779000	usd
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	80827000	usd
CY2021	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-4099000	usd
CY2021	us-gaap	Noninterest Income NoninterestIncome	52263000	usd
CY2021	us-gaap	Noninterest Expense NoninterestExpense	89196000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	47993000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10476000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	37517000	usd
CY2021Q4	us-gaap	Assets Assets	2724719000	usd
CY2021Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	73650000	usd
CY2023Q4	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false

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$NRIM
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2024 Q1 Form 10-K Financial Statement

#000116337024000010 Filed on March 08, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

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$NRIM NORTHRIM BANCORP INC Stock $nrim

2024 Q1 Form 10-K Financial Statement

#000116337024000010 Filed on March 08, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NRIM
NORTHRIM BANCORP INC Stock $nrim