$FFNW
First Financial Northwest, Inc. Stock $ffnw

$ffnw Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000093905724000074 Filed on March 13, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$787.0K		$2.773M
YoY Change	18.35%		-14.6%
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	$499.0K	$497.0K	$2.028M
YoY Change	-2.92%	-2.74%	-7.82%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$10.74M		$37.62M
YoY Change	48.3%		245.44%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	-$1.469M	$1.469M	$7.858M
YoY Change	-155.9%	-63.25%	-52.11%
Income Tax	-$393.0K	$275.0K	$1.553M
% Of Pretax Income		18.72%	19.76%
Net Earnings	-$1.076M	$1.194M	$6.305M
YoY Change	-150.71%	-62.86%	-52.38%
Net Earnings / Revenue	-136.72%		227.37%
Basic Earnings Per Share	-$0.12		$0.69
Diluted Earnings Per Share	-$0.12	$0.13	$0.69
COMMON SHARES
Basic Shares Outstanding	9.174M shares	9.180M shares	9.126M shares
Diluted Shares Outstanding	9.159M shares		9.153M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$49.06M	$30.53M
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	$19.32M	$22.28M	$22.28M
YoY Change	-6.8%	5.15%	-8.92%
Goodwill	$889.0K	$889.0K
YoY Change	0.0%	0.0%
Intangibles	$388.0K	$419.0K
YoY Change	-24.81%	-23.54%
Long-Term Investments
YoY Change
Other Assets	$2.399M	$2.648M	$2.648M
YoY Change	-19.77%	1.96%	1.96%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$1.468B	$1.505B	$1.505B
YoY Change	-6.73%	0.14%	0.14%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.134M	$2.739M	$2.739M
YoY Change	51.4%	735.06%	735.06%
Accrued Expenses	$2.598M	$2.806M	$2.806M
YoY Change	-23.0%	-18.76%	-18.76%
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$3.732M	$5.545M	$5.545M
YoY Change	-9.48%	46.62%	46.62%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$16.89M	$15.82M	$15.82M
YoY Change	-5.79%	-23.52%	-23.52%
Total Long-Term Liabilities	$16.89M	$15.82M	$15.82M
YoY Change	-5.79%	-23.52%	-23.52%
TOTAL LIABILITIES
Total Short-Term Liabilities	$3.732M	$5.545M	$5.545M
Total Long-Term Liabilities	$16.89M	$15.82M	$15.82M
Total Liabilities	$1.308B	$1.343B	$1.343B
YoY Change	-7.53%	0.06%	0.06%
SHAREHOLDERS EQUITY
Retained Earnings	$93.94M	$96.21M
YoY Change	-1.74%	1.21%
Common Stock	$92.00K	$92.00K
YoY Change	0.0%	1.1%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$160.2M	$161.7M	$161.7M
YoY Change
Total Liabilities & Shareholders Equity	$1.468B	$1.505B	$1.505B
YoY Change	-6.73%	0.14%	0.14%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	-$1.076M	$1.194M	$6.305M
YoY Change	-150.71%	-62.86%	-52.38%
Depreciation, Depletion And Amortization	$499.0K	$497.0K	$2.028M
YoY Change	-2.92%	-2.74%	-7.82%
Cash From Operating Activities	-$4.027M	-$4.662M	$4.171M
YoY Change	-289.06%	-197.33%	-85.1%
INVESTING ACTIVITIES
Capital Expenditures	$155.0K	$243.0K	$507.0K
YoY Change	181.82%	153.13%	-44.04%
Acquisitions
YoY Change
Other Investing Activities	$61.38M	-$4.762M	$3.234M
YoY Change	-470.4%	-75.94%	-102.43%
Cash From Investing Activities	$61.23M	-$5.005M	$2.727M
YoY Change	-468.24%	-74.84%	-102.03%
FINANCING ACTIVITIES
Cash Dividend Paid	$1.192M		$4.763M
YoY Change	0.25%		9.67%
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$38.67M	-17.50M	-689.0K
YoY Change	-154.62%	-220.59%	-101.21%
NET CHANGE
Cash From Operating Activities	-$4.027M	-4.662M	4.171M
Cash From Investing Activities	$61.23M	-5.005M	2.727M
Cash From Financing Activities	-$38.67M	-17.50M	-689.0K
Net Change In Cash	$18.53M	-27.16M	6.209M
YoY Change	-67.08%	4496.11%	-112.65%
FREE CASH FLOW
Cash From Operating Activities	-$4.027M	-$4.662M	$4.171M
Capital Expenditures	$155.0K	$243.0K	$507.0K
Free Cash Flow	-$4.182M	-$4.905M	$3.664M
YoY Change	-301.54%	-204.5%	-86.47%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	us-gaap	Interest Income Operating InterestIncomeOperating	78158000	usd
CY2022	us-gaap	Interest Income Operating InterestIncomeOperating	59242000	usd
CY2023	dei	Document Type DocumentType	10-K
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0001401564
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-12-31
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	001-33652
CY2023	dei	Entity Registrant Name EntityRegistrantName	FIRST FINANCIAL NORTHWEST, INC.
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	WA
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	26-0610707
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	201 Wells Avenue South
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Renton
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	WA
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	98057
CY2023	dei	City Area Code CityAreaCode	(425)
CY2023	dei	Local Phone Number LocalPhoneNumber	255-4400
CY2023	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value per share
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 Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	true
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	91090732	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	9174425	shares
CY2023Q4	us-gaap	Other Liabilities OtherLiabilities	15818000	usd
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	8391000	usd
CY2022Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	7722000	usd
CY2023Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	22138000	usd
CY2022Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	16598000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	207915000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	217778000	usd
CY2023Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2456000	usd
CY2022Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2444000	usd
CY2023Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	15306000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	15227000	usd
CY2023Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	1175925000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	1167083000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	6527000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	7512000	usd
CY2023Q4	us-gaap	Interest Receivable InterestReceivable	7359000	usd
CY2022Q4	us-gaap	Interest Receivable InterestReceivable	6513000	usd
CY2023Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	2648000	usd
CY2022Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	2597000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	19667000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	21192000	usd
CY2023Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	37653000	usd
CY2022Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	36286000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	10478000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	12479000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	2617000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3275000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	889000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	889000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	419000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	548000	usd
CY2023Q4	us-gaap	Assets Assets	1505082000	usd
CY2022Q4	us-gaap	Assets Assets	1502916000	usd
CY2023Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	100899000	usd
CY2022Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	119944000	usd
CY2023Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1093208000	usd
CY2022Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1050096000	usd
CY2023Q4	us-gaap	Deposits Deposits	1194107000	usd
CY2022Q4	us-gaap	Deposits Deposits	1170040000	usd
CY2023Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	125000000	usd
CY2022Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	145000000	usd
CY2023Q4	us-gaap	Advance Payments By Borrowers For Taxes And Insurance AdvancePaymentsByBorrowersForTaxesAndInsurance	2952000	usd
CY2022Q4	us-gaap	Advance Payments By Borrowers For Taxes And Insurance AdvancePaymentsByBorrowersForTaxesAndInsurance	3051000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2806000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	3454000	usd
CY2023Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	2739000	usd
CY2022Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	328000	usd
CY2022Q4	us-gaap	Other Liabilities OtherLiabilities	20683000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	1343422000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	1342556000	usd
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	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
CY2022Q4	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
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	90000000	shares
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	90000000	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	9179510	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	9179510	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	9127595	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	9127595	shares
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	92000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	91000	usd
CY2023Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	73035000	usd
CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	72424000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	96206000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	95059000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-7673000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-7214000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	161660000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	160360000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1505082000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1502916000	usd
CY2023	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	66938000	usd
CY2022	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	52935000	usd
CY2023	us-gaap	Interest Income Debt Securities Operating InterestIncomeDebtSecuritiesOperating	8474000	usd
CY2022	us-gaap	Interest Income Debt Securities Operating InterestIncomeDebtSecuritiesOperating	5603000	usd
CY2023	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	2261000	usd
CY2022	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	386000	usd
CY2023	us-gaap	Investment Income Dividend InvestmentIncomeDividend	485000	usd
CY2022	us-gaap	Investment Income Dividend InvestmentIncomeDividend	318000	usd
CY2023	us-gaap	Interest Expense Deposits InterestExpenseDeposits	34407000	usd
CY2022	us-gaap	Interest Expense Deposits InterestExpenseDeposits	8955000	usd
CY2023	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Short Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm	3208000	usd
CY2022	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Short Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm	1934000	usd
CY2023	us-gaap	Interest Expense InterestExpense	37615000	usd
CY2022	us-gaap	Interest Expense InterestExpense	10889000	usd
CY2023	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	40543000	usd
CY2022	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	48353000	usd
CY2023	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-208000	usd
CY2022	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-434000	usd
CY2023	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	40751000	usd
CY2022	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	48787000	usd
CY2023	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	usd
CY2022	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	27000	usd
CY2023	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1081000	usd
CY2022	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1004000	usd
CY2023	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	253000	usd
CY2022	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	312000	usd
CY2023	ffnw	Deposit Fees DepositFees	956000	usd
CY2022	ffnw	Deposit Fees DepositFees	936000	usd
CY2023	ffnw	Loan Revenue LoanRevenue	275000	usd
CY2022	ffnw	Loan Revenue LoanRevenue	919000	usd
CY2023	us-gaap	Noninterest Income Other NoninterestIncomeOther	208000	usd
CY2022	us-gaap	Noninterest Income Other NoninterestIncomeOther	49000	usd
CY2023	us-gaap	Noninterest Income NoninterestIncome	2773000	usd
CY2022	us-gaap	Noninterest Income NoninterestIncome	3247000	usd
CY2023	us-gaap	Labor And Related Expense LaborAndRelatedExpense	20366000	usd
CY2022	us-gaap	Labor And Related Expense LaborAndRelatedExpense	21133000	usd
CY2023	us-gaap	Occupancy Net OccupancyNet	4748000	usd
CY2022	us-gaap	Occupancy Net OccupancyNet	4776000	usd
CY2023	us-gaap	Professional Fees ProfessionalFees	2288000	usd
CY2022	us-gaap	Professional Fees ProfessionalFees	2339000	usd
CY2023	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	2857000	usd
CY2022	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	2678000	usd
CY2023	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	763000	usd
CY2022	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	403000	usd
CY2023	us-gaap	General Insurance Expense GeneralInsuranceExpense	468000	usd
CY2022	us-gaap	General Insurance Expense GeneralInsuranceExpense	464000	usd
CY2023	us-gaap	Marketing Expense MarketingExpense	343000	usd
CY2022	us-gaap	Marketing Expense MarketingExpense	303000	usd
CY2023	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	3833000	usd
CY2022	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	3529000	usd
CY2023	us-gaap	Noninterest Expense NoninterestExpense	35666000	usd
CY2022	us-gaap	Noninterest Expense NoninterestExpense	35625000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	7858000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	16409000	usd
CY2023	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	1553000	usd
CY2022	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	3169000	usd
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.69
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.47
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.69
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.45
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9126209	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9006369	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9152617	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9102283	shares
CY2023	us-gaap	Net Income Loss NetIncomeLoss	6305000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	13240000	usd
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	2340000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-18319000	usd
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	492000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-3847000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	0	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	27000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	6000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-2920000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	8994000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-613000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	1889000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-459000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-7388000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5846000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5852000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	157879000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	13240000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-7388000	usd
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	54481	shares
CY2022	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	454000	usd
CY2022	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	usd
CY2022	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	770000	usd
CY2022	us-gaap	Stock Issued During Period Shares Employee Stock Ownership Plan StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan	84640	shares
CY2022	us-gaap	Stock Issued During Period Value Employee Stock Ownership Plan StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan	1372000	usd
CY2022	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	1398000	usd
CY2022	ffnw	Stock Canceled During Period Value Restricted Stock Award Gross StockCanceledDuringPeriodValueRestrictedStockAwardGross	226000	usd
CY2022	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.48
CY2022	us-gaap	Dividends Cash DividendsCash	4343000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	160360000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-459000	usd
CY2023	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1023000	usd
CY2023	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	1000	usd
CY2023	ffnw	Stock Canceled During Period Value Restricted Stock Award Gross StockCanceledDuringPeriodValueRestrictedStockAwardGross	1017000	usd
CY2023	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.52
CY2023	us-gaap	Dividends Cash DividendsCash	4763000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	161660000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	6305000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	13240000	usd
CY2023	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-208000	usd
CY2022	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-434000	usd
CY2023	us-gaap	Investment Income Net Amortization Of Discount And Premium InvestmentIncomeNetAmortizationOfDiscountAndPremium	-534000	usd
CY2022	us-gaap	Investment Income Net Amortization Of Discount And Premium InvestmentIncomeNetAmortizationOfDiscountAndPremium	-720000	usd
CY2023	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	usd
CY2022	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	27000	usd
CY2023	us-gaap	Depreciation Depreciation	2028000	usd
CY2022	us-gaap	Depreciation Depreciation	2153000	usd
CY2023	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-4000	usd
CY2022	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-1000	usd
CY2023	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-175000	usd
CY2022	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-217000	usd
CY2023	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	0	usd
CY2022	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	1372000	usd
CY2023	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	605000	usd
CY2022	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	770000	usd
CY2023	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1081000	usd
CY2022	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1004000	usd
CY2023	ffnw	Change In Annuity Value ChangeInAnnuityValue	12000	usd
CY2022	ffnw	Change In Annuity Value ChangeInAnnuityValue	10000	usd
CY2023	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	790000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-279000	usd
CY2023	ffnw	Increase Decrease In Rightof Use Asset IncreaseDecreaseInRightofUseAsset	-766000	usd
CY2022	ffnw	Increase Decrease In Rightof Use Asset IncreaseDecreaseInRightofUseAsset	-739000	usd
CY2023	ffnw	Increase Decrease In Advance Payments For Taxes And Insurance IncreaseDecreaseInAdvancePaymentsForTaxesAndInsurance	-99000	usd
CY2022	ffnw	Increase Decrease In Advance Payments For Taxes And Insurance IncreaseDecreaseInAdvancePaymentsForTaxesAndInsurance	142000	usd
CY2023	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	846000	usd
CY2022	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	1228000	usd
CY2023	ffnw	Increase Decrease In Lease Liability IncreaseDecreaseInLeaseLiability	-756000	usd
CY2022	ffnw	Increase Decrease In Lease Liability IncreaseDecreaseInLeaseLiability	-719000	usd
CY2023	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	2411000	usd
CY2022	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	216000	usd
CY2023	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-4865000	usd
CY2022	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	11565000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	4171000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	27992000	usd
CY2023	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	0	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	11089000	usd
CY2023	ffnw	Principal Repayments On Investments Available For Sale PrincipalRepaymentsOnInvestmentsAvailableForSale	11669000	usd
CY2022	ffnw	Principal Repayments On Investments Available For Sale PrincipalRepaymentsOnInvestmentsAvailableForSale	16729000	usd
CY2023	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	0	usd
CY2022	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	95687000	usd
CY2023	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	9134000	usd
CY2022	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	63222000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	507000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	906000	usd
CY2023	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-985000	usd
CY2022	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	2047000	usd
CY2023	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	286000	usd
CY2022	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	72000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	2727000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-134116000	usd
CY2023	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	24067000	usd
CY2022	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	12566000	usd
CY2023	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	189000000	usd
CY2022	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	196000000	usd
CY2023	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	209000000	usd
CY2022	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	146000000	usd
CY2023	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1023000	usd
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	454000	usd
CY2023	ffnw	Paymentsfor Stock Awards Settlement PaymentsforStockAwardsSettlement	1016000	usd
CY2022	ffnw	Paymentsfor Stock Awards Settlement PaymentsforStockAwardsSettlement	226000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1398000	usd
CY2023	us-gaap	Payments Of Dividends PaymentsOfDividends	4763000	usd
CY2022	us-gaap	Payments Of Dividends PaymentsOfDividends	4343000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-689000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	57053000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	6209000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-49071000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	24320000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	73391000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	30529000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	24320000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	35204000	usd
CY2023	ffnw	Loans Receivable Number Of Days Delinquent At Which Accrual Of Interest Is Discontinued LoansReceivableNumberOfDaysDelinquentAtWhichAccrualOfInterestIsDiscontinued	P90D
CY2022	us-gaap	Interest Paid Net InterestPaidNet	10673000	usd
CY2023	us-gaap	Income Taxes Paid IncomeTaxesPaid	1900000	usd
CY2022	us-gaap	Income Taxes Paid IncomeTaxesPaid	2485000	usd
CY2023	ffnw	Increase Decreasein Valuation Allowance For Investments Available For Sale IncreaseDecreaseinValuationAllowanceForInvestmentsAvailableForSale	2340000	usd
CY2022	ffnw	Increase Decreasein Valuation Allowance For Investments Available For Sale IncreaseDecreaseinValuationAllowanceForInvestmentsAvailableForSale	-18346000	usd
CY2023	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	-2920000	usd
CY2022	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	8994000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	108000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	368000	usd
CY2023	ffnw	Noncash Initial Recognitionof Lease Liability NoncashInitialRecognitionofLeaseLiability	108000	usd
CY2022	ffnw	Noncash Initial Recognitionof Lease Liability NoncashInitialRecognitionofLeaseLiability	368000	usd
CY2023Q4	ffnw	Regulatory Requirement Federal Reserve System Minimum Reserve Required RegulatoryRequirementFederalReserveSystemMinimumReserveRequired	0	usd
CY2023Q4	ffnw	Federal Home Loan Bank Stock Par Value FederalHomeLoanBankStockParValue	100
CY2023	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Reclassification</span></div>Certain amounts in the consolidated financial statements have been reclassified to conform to the current consolidated financial statement presentation. The results of the reclassifications are not considered material and have no effect on previously reported net income or stockholders’ equity.
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	223725000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	47000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	15857000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	207915000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	235927000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	41000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	18190000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	217778000	usd
CY2023Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2500000	usd
CY2022Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2400000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	207998000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	18190000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	123
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	123
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	39883000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	39603000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	11054000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	10770000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	33762000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	29683000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	55875000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	51029000	usd
CY2023Q4	ffnw	Debt Securities Amortized Cost Total DebtSecuritiesAmortizedCostTotal	140574000	usd
CY2023Q4	ffnw	Schedule Of Available For Sale Securities Debt Maturities ScheduleOfAvailableForSaleSecuritiesDebtMaturities	131085000	usd
CY2023Q4	ffnw	Mortgage Backed Investments Amortized Cost MortgageBackedInvestmentsAmortizedCost	83151000	usd
CY2023Q4	us-gaap	Mortgage Backed Securities Available For Sale Fair Value Disclosure MortgageBackedSecuritiesAvailableForSaleFairValueDisclosure	76830000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	223725000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	207915000	usd
CY2023Q4	ffnw	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged As Percent Of Public Deposits Held FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledgedAsPercentOfPublicDepositsHeld	0.50
CY2023Q4	ffnw	Investments Pledged As Collateral For Public Deposits InvestmentsPledgedAsCollateralForPublicDeposits	26500000	usd
CY2022Q4	ffnw	Investments Pledged As Collateral For Public Deposits InvestmentsPledgedAsCollateralForPublicDeposits	21000000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	0	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1 FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1	0	usd
CY2023	ffnw	Value Of Investments Sold During Period ValueOfInvestmentsSoldDuringPeriod	0	usd
CY2022	ffnw	Value Of Investments Sold During Period ValueOfInvestmentsSoldDuringPeriod	11088000	usd
CY2023	us-gaap	Gain Loss On Investments GainLossOnInvestments	0	usd
CY2022	us-gaap	Gain Loss On Investments GainLossOnInvestments	27000	usd
CY2023	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	0	usd
CY2022	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	0	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	20715000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	177000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	181364000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	15680000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	202079000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	15857000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	115259000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	6392000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	92739000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	11798000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	1191231000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	1182310000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	15306000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	15227000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	1175925000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	1167083000	usd
CY2023Q4	ffnw	Loans Receivable Percentage Of Loan Portfolio LoansReceivablePercentageOfLoanPortfolio	0.086
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	149777000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	242560000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	225824000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	190730000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	86917000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	295423000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	1191231000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff	0	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff	0	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff	0	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff	0	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff	22000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff	0	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	22000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	1182310000	usd
CY2023Q4	us-gaap	Financing Receivable Percent Past Due1 FinancingReceivablePercentPastDue1	0.0012
CY2022Q4	us-gaap	Financing Receivable Percent Past Due1 FinancingReceivablePercentPastDue1	0.0002
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	1191231000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	2	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	1182310000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	usd
CY2023Q4	ffnw	Financing Receivable Excluding Accrued Interest Percent Past Due To Total Assets FinancingReceivableExcludingAccruedInterestPercentPastDueToTotalAssets	0.0001
CY2022Q4	ffnw	Financing Receivable Excluding Accrued Interest Percent Past Due To Total Assets FinancingReceivableExcludingAccruedInterestPercentPastDueToTotalAssets	0.0001
CY2022	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	43315000	usd
CY2022	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	2157000	usd
CY2022	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	1006000	usd
CY2022	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	64000	usd
CY2022	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	44321000	usd
CY2022	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	2221000	usd
CY2022Q4	ffnw	Troubled Debt Restructured Loans Now Performing TroubledDebtRestructuredLoansNowPerforming	1360000	usd
CY2022Q4	ffnw	Troubled Debt Restructured Loans Nonaccrual Status TroubledDebtRestructuredLoansNonaccrualStatus	0	usd
CY2022Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	1360000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	40255000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	40073000	usd
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	20841000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	19277000	usd
CY2023Q4	us-gaap	Development In Process DevelopmentInProcess	253000	usd
CY2022Q4	us-gaap	Development In Process DevelopmentInProcess	396000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	19667000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	21192000	usd
CY2023	us-gaap	Depreciation Depreciation	2000000	usd
CY2022	us-gaap	Depreciation Depreciation	2200000	usd
CY2023Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	207915000	usd
CY2023Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	215480000	usd
CY2022Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	217778000	usd
CY2022Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	228263000	usd
CY2023Q4	us-gaap	Interest Receivable InterestReceivable	7359000	usd
CY2022Q4	us-gaap	Interest Receivable InterestReceivable	6513000	usd
CY2023Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	100899000	usd
CY2022Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	119944000	usd
CY2023Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	56968000	usd
CY2022Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	96632000	usd
CY2023Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	18886000	usd
CY2022Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	23636000	usd
CY2023Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	529411000	usd
CY2022Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	542388000	usd
CY2023Q4	ffnw	Certificatedof Deposits Retail CertificatedofDepositsRetail	357153000	usd
CY2022Q4	ffnw	Certificatedof Deposits Retail CertificatedofDepositsRetail	262554000	usd
CY2023Q4	us-gaap	Deposits Wholesale DepositsWholesale	130790000	usd
CY2022Q4	us-gaap	Deposits Wholesale DepositsWholesale	124886000	usd
CY2023Q4	us-gaap	Deposits Deposits	1194107000	usd
CY2022Q4	us-gaap	Deposits Deposits	1170040000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	330127000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	85956000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	9777000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	16029000	usd
CY2023Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	10524000	usd
CY2023Q4	us-gaap	Time Deposits TimeDeposits	452413000	usd
CY2023Q4	ffnw	Deposits Public Funds DepositsPublicFunds	85800000	usd
CY2022Q4	ffnw	Deposits Public Funds DepositsPublicFunds	61000000	usd
CY2023Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	171400000	usd
CY2022Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	89600000	usd
CY2023	ffnw	Interest Expense Time Depositsator Above Fdic Insurance Limit InterestExpenseTimeDepositsatorAboveFDICInsuranceLimit	4700000	usd
CY2022	ffnw	Interest Expense Time Depositsator Above Fdic Insurance Limit InterestExpenseTimeDepositsatorAboveFDICInsuranceLimit	1200000	usd
CY2023Q4	ffnw	Deposits Controlled By Related Parties DepositsControlledByRelatedParties	2300000	usd
CY2022Q4	ffnw	Deposits Controlled By Related Parties DepositsControlledByRelatedParties	2700000	usd
CY2023	ffnw	Interest Expense Deposit Liabilities Notice Of Withdrawal InterestExpenseDepositLiabilitiesNoticeOfWithdrawal	1013000	usd
CY2022	ffnw	Interest Expense Deposit Liabilities Notice Of Withdrawal InterestExpenseDepositLiabilitiesNoticeOfWithdrawal	478000	usd
CY2023	ffnw	Interest Expense Deposit Liabilities Savings InterestExpenseDepositLiabilitiesSavings	6000	usd
CY2022	ffnw	Interest Expense Deposit Liabilities Savings InterestExpenseDepositLiabilitiesSavings	7000	usd
CY2023	ffnw	Interest Expense Deposit Liabilities Money Market InterestExpenseDepositLiabilitiesMoneyMarket	14503000	usd
CY2022	ffnw	Interest Expense Deposit Liabilities Money Market InterestExpenseDepositLiabilitiesMoneyMarket	3744000	usd
CY2023	ffnw	Interest Expense Deposit Liabilities Certificates Of Deposit InterestExpenseDepositLiabilitiesCertificatesOfDeposit	10741000	usd
CY2022	ffnw	Interest Expense Deposit Liabilities Certificates Of Deposit InterestExpenseDepositLiabilitiesCertificatesOfDeposit	3635000	usd
CY2023	us-gaap	Interest Expense Domestic Deposit Liabilities Brokered InterestExpenseDomesticDepositLiabilitiesBrokered	8144000	usd
CY2022	us-gaap	Interest Expense Domestic Deposit Liabilities Brokered InterestExpenseDomesticDepositLiabilitiesBrokered	1091000	usd
CY2023	us-gaap	Interest Expense Deposits InterestExpenseDeposits	34407000	usd
CY2022	us-gaap	Interest Expense Deposits InterestExpenseDeposits	8955000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	686300000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	667900000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	160000000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	159000000	usd
CY2023Q4	ffnw	Federal Home Loan Bank Advances Activityfor Year Average Outstanding FederalHomeLoanBankAdvancesActivityforYearAverageOutstanding	127263000	usd
CY2022Q4	ffnw	Federal Home Loan Bank Advances Activityfor Year Average Outstanding FederalHomeLoanBankAdvancesActivityforYearAverageOutstanding	113890000	usd
CY2023Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	125000000	usd
CY2022Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	145000000	usd
CY2023Q4	ffnw	Federal Home Loan Bank Advances Activityfor Year Average Interest Rate During Period FederalHomeLoanBankAdvancesActivityforYearAverageInterestRateDuringPeriod	0.0252	rate
CY2022Q4	ffnw	Federal Home Loan Bank Advances Activityfor Year Average Interest Rate During Period FederalHomeLoanBankAdvancesActivityforYearAverageInterestRateDuringPeriod	0.0170	rate
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate At Period End FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateAtPeriodEnd	0.0222	rate
CY2022Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate At Period End FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateAtPeriodEnd	0.0237	rate
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary By Interest Rate Type Floating Rate FederalHomeLoanBankAdvancesMaturitiesSummaryByInterestRateTypeFloatingRate	10000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary By Interest Rate Type Fixed Rate FederalHomeLoanBankAdvancesMaturitiesSummaryByInterestRateTypeFixedRate	115000000	usd
CY2023Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	125000000	usd
CY2023Q4	ffnw	Number Of Operating Leases NumberOfOperatingLeases	13	lease
CY2023Q4	ffnw	Operating Lease Monthly Lease Payment OperatingLeaseMonthlyLeasePayment	74000	usd
CY2023	us-gaap	Operating Lease Expense OperatingLeaseExpense	1143000	usd
CY2022	us-gaap	Operating Lease Expense OperatingLeaseExpense	1107000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	2617000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3275000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2806000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	3454000	usd
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y9M21D
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y1M28D
CY2023Q4	us-gaap	Lessee Operating Lease Discount Rate LesseeOperatingLeaseDiscountRate	0.0227
CY2022Q4	us-gaap	Lessee Operating Lease Discount Rate LesseeOperatingLeaseDiscountRate	0.0210
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	845000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	691000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	371000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	304000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	310000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	432000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	2953000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	147000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	2806000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	7600000	usd
CY2023	us-gaap	Gain Loss On Cash Flow Hedge Ineffectiveness Net GainLossOnCashFlowHedgeIneffectivenessNet	0	usd
CY2022	us-gaap	Gain Loss On Cash Flow Hedge Ineffectiveness Net GainLossOnCashFlowHedgeIneffectivenessNet	0	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	2307000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	7105000	usd
CY2023	ffnw	Defined Benefit Plan Minimum Service Requisite Period DefinedBenefitPlanMinimumServiceRequisitePeriod	P1Y
CY2023	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	51000	usd
CY2022	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-15000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1553000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3169000	usd
CY2023	ffnw	Defined Benefit Plan Vesting Period DefinedBenefitPlanVestingPeriod	P5Y
CY2023Q4	ffnw	Multiemployer Plans Funded Percentage MultiemployerPlansFundedPercentage	0.952
CY2022Q4	ffnw	Multiemployer Plans Funded Percentage MultiemployerPlansFundedPercentage	1.019
CY2023	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	276000	usd
CY2022	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	177000	usd
CY2023Q4	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	1200000	usd
CY2020Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	2400000	usd
CY2023Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2500000	usd
CY2023	ffnw	Defined Contribution Plan Number Of Days Of Continuous Employment To Be Eligible DefinedContributionPlanNumberOfDaysOfContinuousEmploymentToBeEligible	P60D
CY2023	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.05
CY2023	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	1
CY2023	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	543000	usd
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	365000	usd
CY2023Q4	ffnw	Defined Contribution Plan Accrued Expense DefinedContributionPlanAccruedExpense	737000	usd
CY2023Q4	us-gaap	Employee Stock Ownership Plan Esop Debt Structure Direct Loan Amount EmployeeStockOwnershipPlanESOPDebtStructureDirectLoanAmount	16900000	usd
CY2023	us-gaap	Employee Stock Ownership Plan Esop Shares Contributed To Esop EmployeeStockOwnershipPlanESOPSharesContributedToESOP	1692800	shares
CY2023Q4	ffnw	Employee Stock Ownership Plan Esop Shares Contributed To Esop Price Per Share EmployeeStockOwnershipPlanEsopSharesContributedToEsopPricePerShare	10.00
CY2023	ffnw	Employee Stock Ownership Plan Esop Interest Rate Of Loan From Company EmployeeStockOwnershipPlanEsopInterestRateOfLoanFromCompany	0.0488
CY2023	ffnw	Employee Stock Ownership Plan Esop Principal And Interest Payments From Esop EmployeeStockOwnershipPlanEsopPrincipalAndInterestPaymentsFromEsop	0	usd
CY2022	ffnw	Employee Stock Ownership Plan Esop Principal And Interest Payments From Esop EmployeeStockOwnershipPlanEsopPrincipalAndInterestPaymentsFromEsop	1200000	usd
CY2023	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	0	usd
CY2022	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	1372000	usd
CY2023	us-gaap	Employee Stock Ownership Plan Esop Dividends Paid To Esop EmployeeStockOwnershipPlanESOPDividendsPaidToESOP	0	usd
CY2022	us-gaap	Employee Stock Ownership Plan Esop Dividends Paid To Esop EmployeeStockOwnershipPlanESOPDividendsPaidToESOP	30000	usd
CY2023Q4	us-gaap	Employee Stock Ownership Plan Esop Number Of Allocated Shares EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares	1692800	shares
CY2022Q4	us-gaap	Employee Stock Ownership Plan Esop Number Of Allocated Shares EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares	1692800	shares
CY2023Q4	us-gaap	Employee Stock Ownership Plan Esop Number Of Suspense Shares EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares	0	shares
CY2022Q4	us-gaap	Employee Stock Ownership Plan Esop Number Of Suspense Shares EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares	0	shares
CY2023Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	1692800	shares
CY2022Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	1692800	shares
CY2023Q4	us-gaap	Employee Stock Ownership Plan Esop Deferred Shares Fair Value EmployeeStockOwnershipPlanESOPDeferredSharesFairValue	0	usd
CY2022Q4	us-gaap	Employee Stock Ownership Plan Esop Deferred Shares Fair Value EmployeeStockOwnershipPlanESOPDeferredSharesFairValue	0	usd
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	605000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	770000	usd
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	2.98
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1378000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2952000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	175000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	217000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1553000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3169000	usd
CY2023	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1650000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	3441000	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	-75000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	50000	usd
CY2023	ffnw	Effective Income Tax Rate Reconciliation Boli Amount EffectiveIncomeTaxRateReconciliationBOLIAmount	223000	usd
CY2022	ffnw	Effective Income Tax Rate Reconciliation Boli Amount EffectiveIncomeTaxRateReconciliationBOLIAmount	207000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	3214000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	3198000	usd
CY2023Q4	ffnw	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserve For Unfunded Commitments DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserveForUnfundedCommitments	92000	usd
CY2022Q4	ffnw	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserve For Unfunded Commitments DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserveForUnfundedCommitments	52000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	261000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	218000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	3319000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	3811000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	182000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	273000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	106000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	104000	usd
CY2023Q4	ffnw	Deferred Tax Assets Core Deposit Intangible DeferredTaxAssetsCoreDepositIntangible	72000	usd
CY2022Q4	ffnw	Deferred Tax Assets Core Deposit Intangible DeferredTaxAssetsCoreDepositIntangible	63000	usd
CY2023Q4	ffnw	Deferred Tax Assets Acquisitions DeferredTaxAssetsAcquisitions	17000	usd
CY2022Q4	ffnw	Deferred Tax Assets Acquisitions DeferredTaxAssetsAcquisitions	18000	usd
CY2023Q4	ffnw	Deferred Tax Assets Split Dollar Life Insurance DeferredTaxAssetsSplitDollarLifeInsurance	117000	usd
CY2022Q4	ffnw	Deferred Tax Assets Split Dollar Life Insurance DeferredTaxAssetsSplitDollarLifeInsurance	101000	usd
CY2023Q4	ffnw	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	589000	usd
CY2022Q4	ffnw	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	725000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	7969000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	8563000	usd
CY2023Q4	ffnw	Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends	0	usd
CY2022Q4	ffnw	Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends	1000	usd
CY2023Q4	ffnw	Deferred Tax Liabilities Loan Origination Fees DeferredTaxLiabilitiesLoanOriginationFees	1368000	usd
CY2022Q4	ffnw	Deferred Tax Liabilities Loan Origination Fees DeferredTaxLiabilitiesLoanOriginationFees	1246000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	1588000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	2201000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1664000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1699000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	79000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	67000	usd
CY2023Q4	ffnw	Deferred Tax Liability Right Of Use Asset DeferredTaxLiabilityRightOfUseAsset	550000	usd
CY2022Q4	ffnw	Deferred Tax Liability Right Of Use Asset DeferredTaxLiabilityRightOfUseAsset	688000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	72000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	64000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	5321000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	5966000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	2648000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	2597000	usd
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CY2022Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	0	usd
CY2023Q4	us-gaap	Bad Debt Reserve For Tax Purposes Of Qualified Lender BadDebtReserveForTaxPurposesOfQualifiedLender	4500000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	usd
CY2023Q4	us-gaap	Capital Capital	171971000	usd
CY2023Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1615
CY2023Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	85194000	usd
CY2023Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800
CY2023Q4	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	106493000	usd
CY2023Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.1000
CY2023Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	158629000	usd
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CY2023Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	63896000	usd
CY2023Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0600
CY2023Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized TierOneRiskBasedCapitalRequiredToBeWellCapitalized	85194000	usd
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CY2023Q4	ffnw	Common Equity Tier One Capital For Capital Adequacy CommonEquityTierOneCapitalForCapitalAdequacy	47922000	usd
CY2023Q4	ffnw	Common Equity Tierone Capitalto Risk Weighted Assets For Capital Adequacy CommonEquityTieroneCapitaltoRiskWeightedAssetsForCapitalAdequacy	0.0450
CY2023Q4	ffnw	Common Equity Tier One Capitaltobe Well Capitalized CommonEquityTierOneCapitaltobeWellCapitalized	69220000	usd
CY2023Q4	ffnw	Common Equity Tier One Capitaltobe Well Capitalizedto Risk Weighted Assets CommonEquityTierOneCapitaltobeWellCapitalizedtoRiskWeightedAssets	0.0650
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CY2023Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	62349000	usd
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CY2023Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized TierOneLeverageCapitalRequiredToBeWellCapitalized	77936000	usd
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CY2022Q4	us-gaap	Capital Capital	169755000	usd
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CY2022Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	86942000	usd
CY2022Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800
CY2022Q4	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	108678000	usd
CY2022Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.1000
CY2022Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	156147000	usd
CY2022Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1437
CY2022Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	65207000	usd
CY2022Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0600
CY2022Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized TierOneRiskBasedCapitalRequiredToBeWellCapitalized	86942000	usd
CY2022Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.0800
CY2022Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	156147000	usd
CY2022Q4	ffnw	Common Equity Tier One Capitalto Risk Weighted Assets CommonEquityTierOneCapitaltoRiskWeightedAssets	0.1437
CY2022Q4	ffnw	Common Equity Tier One Capital For Capital Adequacy CommonEquityTierOneCapitalForCapitalAdequacy	48905000	usd
CY2022Q4	ffnw	Common Equity Tierone Capitalto Risk Weighted Assets For Capital Adequacy CommonEquityTieroneCapitaltoRiskWeightedAssetsForCapitalAdequacy	0.0450
CY2022Q4	ffnw	Common Equity Tier One Capitaltobe Well Capitalized CommonEquityTierOneCapitaltobeWellCapitalized	70641000	usd
CY2022Q4	ffnw	Common Equity Tier One Capitaltobe Well Capitalizedto Risk Weighted Assets CommonEquityTierOneCapitaltobeWellCapitalizedtoRiskWeightedAssets	0.0650
CY2022Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	156147000	usd
CY2022Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.1031
CY2022Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	60578000	usd
CY2022Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400
CY2022Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized TierOneLeverageCapitalRequiredToBeWellCapitalized	75722000	usd
CY2022Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.0500
CY2023Q4	ffnw	Conservation Buffer ConservationBuffer	0.0815
CY2023Q4	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	83600000	usd
CY2022Q4	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	74000000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	6305000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	13240000	usd
CY2023	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	-18000	usd
CY2022	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	-44000	usd
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	6287000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	13196000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9126209	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9006369	shares
CY2023	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	18680	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	81480	shares
CY2023	ffnw	Incremental Common Shares Attributableto Dilutive Effectof Restricted Stock Grants IncrementalCommonSharesAttributabletoDilutiveEffectofRestrictedStockGrants	7728	shares
CY2022	ffnw	Incremental Common Shares Attributableto Dilutive Effectof Restricted Stock Grants IncrementalCommonSharesAttributabletoDilutiveEffectofRestrictedStockGrants	14434	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9152617	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9102283	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.69
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.47
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.69
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.45
CY2023	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	80000	shares
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2023	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	usd
CY2022	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	27000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2773000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3247000	usd
CY2023Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	0	usd
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	0	usd
CY2023Q4	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2023Q4	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false

Files In Submission

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$FFNW
First Financial Northwest, Inc. Stock $ffnw

2024 Q1 Form 10-K Financial Statement

#000093905724000074 Filed on March 13, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FFNW First Financial Northwest, Inc. Stock $ffnw

2024 Q1 Form 10-K Financial Statement

#000093905724000074 Filed on March 13, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FFNW
First Financial Northwest, Inc. Stock $ffnw