$FFNW
First Financial Northwest, Inc. Stock $ffnw

$ffnw Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000093905722000076 Filed on March 11, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue		$3.862M
YoY Change		-13.06%
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	$550.0K	$2.200M	$530.0K
YoY Change	3.77%	0.0%	3.92%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense		$8.819M
YoY Change		-43.63%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$3.390M	$15.17M	$3.270M
YoY Change	3.67%	44.54%	0.62%
Income Tax	$640.0K	$2.925M	$620.0K
% Of Pretax Income	18.88%	19.28%	18.96%
Net Earnings	$2.740M	$12.25M	$2.650M
YoY Change	3.4%	43.16%	1.15%
Net Earnings / Revenue		317.17%
Basic Earnings Per Share		$1.31
Diluted Earnings Per Share	$295.3K	$1.29	$276.0K
COMMON SHARES
Basic Shares Outstanding	9.351M shares	9.341M shares	9.786M shares
Diluted Shares Outstanding		9.454M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$73.39M		$80.49M
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	$22.44M	$26.10M	$22.58M
YoY Change	-0.62%	-0.38%	0.5%
Goodwill	$889.0K		$889.0K
YoY Change	0.0%		0.0%
Intangibles	$684.0K		$824.0K
YoY Change	-16.99%		-14.88%
Long-Term Investments
YoY Change
Other Assets	$900.0K	$900.0K	$1.600M
YoY Change	-43.75%	-43.75%	6.67%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$1.426B	$1.426B	$1.388B
YoY Change	2.79%	2.78%	3.41%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$100.0K	$100.0K	$200.0K
YoY Change	-50.0%	-50.0%	-33.33%
Accrued Expenses	$3.800M	$3.800M	$3.800M
YoY Change	0.0%	0.0%	65.22%
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$3.900M	$3.900M	$4.000M
YoY Change	-2.5%	-2.5%	53.85%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$9.200M	$9.200M	$11.20M
YoY Change	-17.86%	-17.86%	27.27%
Total Long-Term Liabilities	$9.200M	$9.200M	$11.20M
YoY Change	-17.86%	-17.86%	27.27%
TOTAL LIABILITIES
Total Short-Term Liabilities	$3.900M	$3.900M	$4.000M
Total Long-Term Liabilities	$9.200M	$9.200M	$11.20M
Total Liabilities	$1.268B	$1.269B	$1.231B
YoY Change	3.01%	3.01%	3.86%
SHAREHOLDERS EQUITY
Retained Earnings	$86.16M		$78.00M
YoY Change	10.46%		6.39%
Common Stock	$91.00K		$97.00K
YoY Change	-6.19%		-5.83%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$157.9M	$157.9M	$156.3M
YoY Change
Total Liabilities & Shareholders Equity	$1.426B	$1.426B	$1.388B
YoY Change	2.79%	2.78%	3.41%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$2.740M	$12.25M	$2.650M
YoY Change	3.4%	43.16%	1.15%
Depreciation, Depletion And Amortization	$550.0K	$2.200M	$530.0K
YoY Change	3.77%	0.0%	3.92%
Cash From Operating Activities	$4.260M	$18.44M	$2.180M
YoY Change	95.41%	53.98%	-10.66%
INVESTING ACTIVITIES
Capital Expenditures	-$360.0K	$2.020M	-$700.0K
YoY Change	-48.57%	-11.52%	11.11%
Acquisitions
YoY Change
Other Investing Activities	$6.980M	-$47.19M	$31.71M
YoY Change	-77.99%	-413.35%	-229.8%
Cash From Investing Activities	$6.620M	-$49.21M	$31.01M
YoY Change	-78.65%	-485.08%	-223.74%
FINANCING ACTIVITIES
Cash Dividend Paid		$4.090M
YoY Change		5.58%
Common Stock Issuance & Retirement, Net		$11.38M
YoY Change		99.51%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-16.60M	$23.67M	21.19M
YoY Change	-178.34%	-27.71%	-33.55%
NET CHANGE
Cash From Operating Activities	4.260M	$18.44M	2.180M
Cash From Investing Activities	6.620M	-$49.21M	31.01M
Cash From Financing Activities	-16.60M	$23.67M	21.19M
Net Change In Cash	-5.720M	-$7.098M	54.38M
YoY Change	-110.52%	-112.34%	486.62%
FREE CASH FLOW
Cash From Operating Activities	$4.260M	$18.44M	$2.180M
Capital Expenditures	-$360.0K	$2.020M	-$700.0K
Free Cash Flow	$4.620M	$16.42M	$2.880M
YoY Change	60.42%	69.41%	-6.19%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001401564
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	7246000	USD
CY2021	dei	Auditor Firm AuditorFirmId	659
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-33652
CY2021	dei	Entity Registrant Name EntityRegistrantName	FIRST FINANCIAL NORTHWEST, INC.
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	WA
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	26-0610707
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	201 Wells Avenue South
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Renton
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	WA
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	98057
CY2021	dei	City Area Code CityAreaCode	(425)
CY2021	dei	Local Phone Number LocalPhoneNumber	255-4400
CY2021	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value per share
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	true
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021Q2	dei	Entity Public Float EntityPublicFloat	127362869	USD
CY2022Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	9128460	shares
CY2021	dei	Auditor Name AuditorName	Moss Adams LLP
CY2021	dei	Auditor Location AuditorLocation	Everett, Washington
CY2020Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	7995000	USD
CY2021Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	66145000	USD
CY2020Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	72494000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	168948000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	127551000	USD
CY2021Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2432000	USD
CY2020Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2418000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	15657000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	15174000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	1103461000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	1100582000	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	5465000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	6410000	USD
CY2021Q4	us-gaap	Interest Receivable InterestReceivable	5285000	USD
CY2020Q4	us-gaap	Interest Receivable InterestReceivable	5508000	USD
CY2021Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	850000	USD
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	1641000	USD
CY2021Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	0	USD
CY2020Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	454000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	22440000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	22579000	USD
CY2021Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	35210000	USD
CY2020Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	33034000	USD
CY2021Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	3628000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	1643000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3646000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3647000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	889000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	889000	USD
CY2021Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	684000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	824000	USD
CY2021Q4	us-gaap	Assets Assets	1426329000	USD
CY2020Q4	us-gaap	Assets Assets	1387669000	USD
CY2021Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	117751000	USD
CY2020Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	91285000	USD
CY2021Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1039723000	USD
CY2020Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1002348000	USD
CY2021Q4	us-gaap	Deposits Deposits	1157474000	USD
CY2020Q4	us-gaap	Deposits Deposits	1093633000	USD
CY2021Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	95000000	USD
CY2020Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	120000000	USD
CY2021Q4	us-gaap	Advance Payments By Borrowers For Taxes And Insurance AdvancePaymentsByBorrowersForTaxesAndInsurance	2909000	USD
CY2020Q4	us-gaap	Advance Payments By Borrowers For Taxes And Insurance AdvancePaymentsByBorrowersForTaxesAndInsurance	2498000	USD
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	3805000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	3783000	USD
CY2021Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	112000	USD
CY2020Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	211000	USD
CY2021Q4	us-gaap	Other Liabilities OtherLiabilities	9150000	USD
CY2020Q4	us-gaap	Other Liabilities OtherLiabilities	11242000	USD
CY2021Q4	us-gaap	Liabilities Liabilities	1268450000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	1231367000	USD
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2021Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	90000000	shares
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	90000000	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	9125759	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	9125759	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	9736875	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	9736875	shares
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	91000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	97000	USD
CY2021Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	72298000	USD
CY2020Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	82095000	USD
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	86162000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	78003000	USD
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	174000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1918000	USD
CY2021Q4	us-gaap	Unearned Esop Shares UnearnedESOPShares	846000	USD
CY2020Q4	us-gaap	Unearned Esop Shares UnearnedESOPShares	1975000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	157879000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	156302000	USD
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1426329000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1387669000	USD
CY2021	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	50170000	USD
CY2020	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	52546000	USD
CY2021	us-gaap	Interest Income Debt Securities Available For Sale Operating InterestIncomeDebtSecuritiesAvailableForSaleOperating	3200000	USD
CY2020	us-gaap	Interest Income Debt Securities Available For Sale Operating InterestIncomeDebtSecuritiesAvailableForSaleOperating	3173000	USD
CY2021	us-gaap	Interest And Dividend Income Securities Held To Maturity InterestAndDividendIncomeSecuritiesHeldToMaturity	24000	USD
CY2020	us-gaap	Interest And Dividend Income Securities Held To Maturity InterestAndDividendIncomeSecuritiesHeldToMaturity	23000	USD
CY2021	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	72000	USD
CY2020	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	52000	USD
CY2021	us-gaap	Investment Income Dividend InvestmentIncomeDividend	332000	USD
CY2020	us-gaap	Investment Income Dividend InvestmentIncomeDividend	320000	USD
CY2021	us-gaap	Interest Income Operating InterestIncomeOperating	53798000	USD
CY2020	us-gaap	Interest Income Operating InterestIncomeOperating	56114000	USD
CY2021	us-gaap	Interest Expense Deposits InterestExpenseDeposits	7216000	USD
CY2020	us-gaap	Interest Expense Deposits InterestExpenseDeposits	14005000	USD
CY2021	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Short Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm	1603000	USD
CY2020	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Short Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm	1640000	USD
CY2021	us-gaap	Interest Expense InterestExpense	8819000	USD
CY2020	us-gaap	Interest Expense InterestExpense	15645000	USD
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	44979000	USD
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	40469000	USD
CY2021	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	300000	USD
CY2020	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1900000	USD
CY2021	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	44679000	USD
CY2020	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	38569000	USD
CY2021	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	32000	USD
CY2020	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	86000	USD
CY2021	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1107000	USD
CY2020	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	982000	USD
CY2021	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	494000	USD
CY2020	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	663000	USD
CY2021	ffnw	Deposit Fees DepositFees	872000	USD
CY2020	ffnw	Deposit Fees DepositFees	755000	USD
CY2021	ffnw	Loan Revenue LoanRevenue	1265000	USD
CY2020	ffnw	Loan Revenue LoanRevenue	1947000	USD
CY2021	us-gaap	Noninterest Income Other NoninterestIncomeOther	92000	USD
CY2020	us-gaap	Noninterest Income Other NoninterestIncomeOther	9000	USD
CY2021	us-gaap	Noninterest Income NoninterestIncome	3862000	USD
CY2020	us-gaap	Noninterest Income NoninterestIncome	4442000	USD
CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	20237000	USD
CY2020	us-gaap	Labor And Related Expense LaborAndRelatedExpense	20039000	USD
CY2021	us-gaap	Occupancy Net OccupancyNet	4557000	USD
CY2020	us-gaap	Occupancy Net OccupancyNet	4237000	USD
CY2021	us-gaap	Professional Fees ProfessionalFees	1899000	USD
CY2020	us-gaap	Professional Fees ProfessionalFees	1707000	USD
CY2021	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	2692000	USD
CY2020	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	2822000	USD
CY2021	ffnw	Foreclosed Real Estate Recovery Expense Net ForeclosedRealEstateRecoveryExpenseNet	209000	USD
CY2020	ffnw	Foreclosed Real Estate Recovery Expense Net ForeclosedRealEstateRecoveryExpenseNet	9000	USD
CY2021	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	456000	USD
CY2020	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	547000	USD
CY2021	us-gaap	General Insurance Expense GeneralInsuranceExpense	451000	USD
CY2020	us-gaap	General Insurance Expense GeneralInsuranceExpense	445000	USD
CY2021	us-gaap	Marketing Expense MarketingExpense	154000	USD
CY2020	us-gaap	Marketing Expense MarketingExpense	197000	USD
CY2021	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	2712000	USD
CY2020	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	2510000	USD
CY2021	us-gaap	Noninterest Expense NoninterestExpense	33367000	USD
CY2020	us-gaap	Noninterest Expense NoninterestExpense	32513000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	15174000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	10498000	USD
CY2021	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	2925000	USD
CY2020	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	1942000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	12249000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	8556000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.31
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.88
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.29
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.88
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9340997	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9734493	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9454495	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9758644	shares
CY2021	us-gaap	Net Income Loss NetIncomeLoss	12249000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	8556000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-1636000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	2645000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-343000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	556000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	32000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	86000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	7000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	18000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	4316000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-3251000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	906000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-683000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2092000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-547000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	14341000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	8009000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	156319000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	8556000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-547000	USD
CY2020	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	USD
CY2020	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	427000	USD
CY2020	us-gaap	Stock Issued During Period Shares Employee Stock Ownership Plan StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan	112854	shares
CY2020	us-gaap	Stock Issued During Period Value Employee Stock Ownership Plan StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan	1200000	USD
CY2020	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	5706000	USD
CY2020	ffnw	Stock Canceled During Period Value Restricted Stock Award Gross StockCanceledDuringPeriodValueRestrictedStockAwardGross	73000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.40
CY2020	us-gaap	Dividends Cash DividendsCash	3874000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	156302000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	12249000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2092000	USD
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	344000	USD
CY2021	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	1000	USD
CY2021	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	708000	USD
CY2021	us-gaap	Stock Issued During Period Shares Employee Stock Ownership Plan StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan	112853	shares
CY2021	us-gaap	Stock Issued During Period Value Employee Stock Ownership Plan StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan	1696000	USD
CY2021	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	11384000	USD
CY2021	ffnw	Stock Canceled During Period Value Restricted Stock Award Gross StockCanceledDuringPeriodValueRestrictedStockAwardGross	39000	USD
CY2021	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.44
CY2021	us-gaap	Dividends Cash DividendsCash	4090000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	157879000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	12249000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	8556000	USD
CY2021	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	300000	USD
CY2020	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1900000	USD
CY2021	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-207000	USD
CY2020	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	USD
CY2021	us-gaap	Investment Income Net Amortization Of Discount And Premium InvestmentIncomeNetAmortizationOfDiscountAndPremium	-1100000	USD
CY2020	us-gaap	Investment Income Net Amortization Of Discount And Premium InvestmentIncomeNetAmortizationOfDiscountAndPremium	-767000	USD
CY2021	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	32000	USD
CY2020	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	86000	USD
CY2021	us-gaap	Depreciation Depreciation	2158000	USD
CY2020	us-gaap	Depreciation Depreciation	2170000	USD
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-1000	USD
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	USD
CY2021	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-235000	USD
CY2020	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-5000	USD
CY2021	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	1696000	USD
CY2020	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	1200000	USD
CY2021	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	708000	USD
CY2020	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	427000	USD
CY2021	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1107000	USD
CY2020	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	982000	USD
CY2021	ffnw	Change In Annuity Value ChangeInAnnuityValue	24000	USD
CY2020	ffnw	Change In Annuity Value ChangeInAnnuityValue	43000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	354000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-291000	USD
CY2021	ffnw	Increase Decrease In Rightof Use Asset IncreaseDecreaseInRightofUseAsset	-759000	USD
CY2020	ffnw	Increase Decrease In Rightof Use Asset IncreaseDecreaseInRightofUseAsset	-678000	USD
CY2021	ffnw	Increase Decrease In Advance Payments For Taxes And Insurance IncreaseDecreaseInAdvancePaymentsForTaxesAndInsurance	411000	USD
CY2020	ffnw	Increase Decrease In Advance Payments For Taxes And Insurance IncreaseDecreaseInAdvancePaymentsForTaxesAndInsurance	-423000	USD
CY2021	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-223000	USD
CY2020	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	1370000	USD
CY2021	ffnw	Increase Decrease In Lease Liability IncreaseDecreaseInLeaseLiability	-736000	USD
CY2020	ffnw	Increase Decrease In Lease Liability IncreaseDecreaseInLeaseLiability	-612000	USD
CY2021	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-99000	USD
CY2020	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-74000	USD
CY2021	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	743000	USD
CY2020	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-430000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	18438000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	11974000	USD
CY2021	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	20042000	USD
CY2020	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	12082000	USD
CY2021	ffnw	Principal Repayments On Investments Available For Sale PrincipalRepaymentsOnInvestmentsAvailableForSale	20028000	USD
CY2020	ffnw	Principal Repayments On Investments Available For Sale PrincipalRepaymentsOnInvestmentsAvailableForSale	12809000	USD
CY2021	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	84203000	USD
CY2020	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	13963000	USD
CY2021	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	USD
CY2020	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	2375000	USD
CY2021	us-gaap	Increase Decrease In Finance Receivables IncreaseDecreaseInFinanceReceivables	3179000	USD
CY2020	us-gaap	Increase Decrease In Finance Receivables IncreaseDecreaseInFinanceReceivables	-5980000	USD
CY2021	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	247000	USD
CY2020	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	0	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2020000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2283000	USD
CY2021	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-945000	USD
CY2020	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-599000	USD
CY2021	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1086000	USD
CY2020	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2021	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	2155000	USD
CY2020	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	70000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-49209000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	12779000	USD
CY2021	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	63841000	USD
CY2020	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	60099000	USD
CY2021	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	25000000	USD
CY2020	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	267000000	USD
CY2021	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	50000000	USD
CY2020	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	284700000	USD
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	344000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2021	ffnw	Paymentsfor Stock Awards Settlement PaymentsforStockAwardsSettlement	38000	USD
CY2020	ffnw	Paymentsfor Stock Awards Settlement PaymentsforStockAwardsSettlement	73000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	11384000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	5706000	USD
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	4090000	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	3874000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	23673000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	32746000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-7098000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	57499000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	80489000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	22990000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	73391000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	80489000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	8918000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	15720000	USD
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	3190000	USD
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	1655000	USD
CY2021	ffnw	Increase Decreasein Valuation Allowance For Investments Available For Sale IncreaseDecreaseinValuationAllowanceForInvestmentsAvailableForSale	-1668000	USD
CY2020	ffnw	Increase Decreasein Valuation Allowance For Investments Available For Sale IncreaseDecreaseinValuationAllowanceForInvestmentsAvailableForSale	2559000	USD
CY2021	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	4316000	USD
CY2020	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	-3251000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	758000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	2116000	USD
CY2021	ffnw	Noncash Initial Recognitionof Lease Liability NoncashInitialRecognitionofLeaseLiability	758000	USD
CY2020	ffnw	Noncash Initial Recognitionof Lease Liability NoncashInitialRecognitionofLeaseLiability	2116000	USD
CY2021Q4	ffnw	Regulatory Requirement Federal Reserve System Minimum Reserve Required RegulatoryRequirementFederalReserveSystemMinimumReserveRequired	0	USD
CY2021	ffnw	Loans Receivable Number Of Days Delinquent At Which Accrual Of Interest Is Discontinued LoansReceivableNumberOfDaysDelinquentAtWhichAccrualOfInterestIsDiscontinued	P90D
CY2021Q4	ffnw	Federal Home Loan Bank Stock Par Value FederalHomeLoanBankStockParValue	100
CY2021	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	ReclassificationCertain amounts in the consolidated financial statements for prior years 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.
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	51
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	168751000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1656000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1459000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	168948000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	125685000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	2680000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	814000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	127551000	USD
CY2020Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2400000	USD
CY2021Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2400000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	399000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	404000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	8547000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	8592000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	27501000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	27784000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	71339000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	71415000	USD
CY2021Q4	ffnw	Debt Securities Amortized Cost Total DebtSecuritiesAmortizedCostTotal	107786000	USD
CY2021Q4	ffnw	Schedule Of Available For Sale Securities Debt Maturities ScheduleOfAvailableForSaleSecuritiesDebtMaturities	108195000	USD
CY2021Q4	ffnw	Mortgage Backed Investments Amortized Cost MortgageBackedInvestmentsAmortizedCost	60965000	USD
CY2021Q4	us-gaap	Mortgage Backed Securities Available For Sale Fair Value Disclosure MortgageBackedSecuritiesAvailableForSaleFairValueDisclosure	60753000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	168751000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	168948000	USD
CY2021Q4	ffnw	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged As Percent Of Public Deposits Held FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledgedAsPercentOfPublicDepositsHeld	0.50
CY2021Q4	ffnw	Investments Pledged As Collateral For Public Deposits InvestmentsPledgedAsCollateralForPublicDeposits	23100000	USD
CY2020Q4	ffnw	Investments Pledged As Collateral For Public Deposits InvestmentsPledgedAsCollateralForPublicDeposits	23400000	USD
CY2020Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	0	USD
CY2021Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	0	USD
CY2021	ffnw	Value Of Investments Sold During Period ValueOfInvestmentsSoldDuringPeriod	20042000	USD
CY2020	ffnw	Value Of Investments Sold During Period ValueOfInvestmentsSoldDuringPeriod	12082000	USD
CY2021	us-gaap	Gain Loss On Investments GainLossOnInvestments	104000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	20
CY2020	us-gaap	Gain Loss On Investments GainLossOnInvestments	189000	USD
CY2021	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-72000	USD
CY2020	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-103000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	64255000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	841000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	29764000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	618000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	94019000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	1459000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	1716000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	11000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	44038000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	803000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	45754000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	814000	USD
CY2021Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	1119536000	USD
CY2020Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	1117410000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	418000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	1654000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	15657000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	15174000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	1103461000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	1100582000	USD
CY2021Q4	us-gaap	Financing Receivable Unamortized Purchase Premium Discount FinancingReceivableUnamortizedPurchasePremiumDiscount	3300000	USD
CY2021Q4	ffnw	Loans Receivable Percentage Of Loan Portfolio LoansReceivablePercentageOfLoanPortfolio	0.081
CY2021Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1119536000	USD
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1117410000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Ratio Of Nonperforming Loans To All Loans LoansAndLeasesReceivableRatioOfNonperformingLoansToAllLoans	0.0002
CY2020Q4	us-gaap	Loans And Leases Receivable Ratio Of Nonperforming Loans To All Loans LoansAndLeasesReceivableRatioOfNonperformingLoansToAllLoans	0.0024
CY2021Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1119536000	USD
CY2021Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	USD
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1117410000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Impaired Nonperforming Nonaccrual Of Interest LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest	0	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Impaired Nonperforming Nonaccrual Of Interest LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest	2104000	USD
CY2020Q4	ffnw	Loans Receivable Non Performing LoansReceivableNonPerforming	2100000	USD
CY2021Q4	ffnw	Loans Receivable Non Performing LoansReceivableNonPerforming	0	USD
CY2021	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	0	USD
CY2020	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	82000	USD
CY2021Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1119536000	USD
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1117410000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	0	USD
CY2021	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	25986000	USD
CY2021	ffnw	Impaired Financing Receivable With No Related Allowance Interest Income Recognized ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeRecognized	1403000	USD
CY2020	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	19894000	USD
CY2020	ffnw	Impaired Financing Receivable With No Related Allowance Interest Income Recognized ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeRecognized	957000	USD
CY2021	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	1254000	USD
CY2021	ffnw	Impaired Financing Receivable With Related Allowance Interest Income Recognized ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeRecognized	68000	USD
CY2020	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	1709000	USD
CY2020	ffnw	Impaired Financing Receivable With Related Allowance Interest Income Recognized ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeRecognized	61000	USD
CY2021	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	27240000	USD
CY2021	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	1471000	USD
CY2020	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	21603000	USD
CY2020	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	1018000	USD
CY2020	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1249000	USD
CY2021Q4	ffnw	Troubled Debt Restructured Loans Now Performing TroubledDebtRestructuredLoansNowPerforming	2107000	USD
CY2020Q4	ffnw	Troubled Debt Restructured Loans Now Performing TroubledDebtRestructuredLoansNowPerforming	3869000	USD
CY2021Q4	ffnw	Troubled Debt Restructured Loans Nonaccrual Status TroubledDebtRestructuredLoansNonaccrualStatus	0	USD
CY2020Q4	ffnw	Troubled Debt Restructured Loans Nonaccrual Status TroubledDebtRestructuredLoansNonaccrualStatus	0	USD
CY2021Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	2107000	USD
CY2020Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	3869000	USD
CY2021	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	4	loan
CY2021	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	2594000	USD
CY2021	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	2594000	USD
CY2020	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	1	loan
CY2020	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1249000	USD
CY2021Q4	ffnw	Troubled Debt Restructuring Commitment To Extend Additional Credit TroubledDebtRestructuringCommitmentToExtendAdditionalCredit	0	USD
CY2020Q4	ffnw	Troubled Debt Restructuring Commitment To Extend Additional Credit TroubledDebtRestructuringCommitmentToExtendAdditionalCredit	0	USD
CY2020	ffnw	Troubled Debt Restructuring Charge To Allowance For Loan And Lease Losses TroubledDebtRestructuringChargeToAllowanceForLoanAndLeaseLosses	0	USD
CY2021	ffnw	Troubled Debt Restructuring Charge To Allowance For Loan And Lease Losses TroubledDebtRestructuringChargeToAllowanceForLoanAndLeaseLosses	0	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	0	USD
CY2020Q4	us-gaap	Other Real Estate OtherRealEstate	454000	USD
CY2019Q4	us-gaap	Other Real Estate OtherRealEstate	454000	USD
CY2021	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	247000	USD
CY2020	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	0	USD
CY2021	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-207000	USD
CY2020	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	USD
CY2021Q4	us-gaap	Other Real Estate OtherRealEstate	0	USD
CY2020Q4	us-gaap	Other Real Estate OtherRealEstate	454000	USD
CY2020Q4	us-gaap	Other Real Estate OtherRealEstate	454000	USD
CY2021	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-207000	USD
CY2021	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	0	USD
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	39634000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	37262000	USD
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	17194000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	15168000	USD
CY2021Q4	us-gaap	Development In Process DevelopmentInProcess	0	USD
CY2020Q4	us-gaap	Development In Process DevelopmentInProcess	485000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	22440000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	22579000	USD
CY2020	us-gaap	Depreciation Depreciation	2200000	USD
CY2021	us-gaap	Depreciation Depreciation	2200000	USD
CY2021Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	168948000	USD
CY2021Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	170439000	USD
CY2020Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	127551000	USD
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	319000	USD
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	266000	USD
CY2021Q4	us-gaap	Interest Receivable InterestReceivable	5285000	USD
CY2020Q4	us-gaap	Interest Receivable InterestReceivable	5508000	USD
CY2021Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	117751000	USD
CY2020Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	91285000	USD
CY2021Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	97907000	USD
CY2020Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	108182000	USD
CY2021Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	23146000	USD
CY2020Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	19221000	USD
CY2021Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	624543000	USD
CY2020Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	465369000	USD
CY2021Q4	ffnw	Certificatedof Deposits Retail CertificatedofDepositsRetail	294127000	USD
CY2020Q4	ffnw	Certificatedof Deposits Retail CertificatedofDepositsRetail	409576000	USD
CY2021Q4	us-gaap	Deposits Deposits	1157474000	USD
CY2020Q4	us-gaap	Deposits Deposits	1093633000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	145337000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	95987000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	42511000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	7527000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	2765000	USD
CY2021Q4	us-gaap	Time Deposits TimeDeposits	294127000	USD
CY2021Q4	ffnw	Deposits Public Funds DepositsPublicFunds	60600000	USD
CY2020Q4	ffnw	Deposits Public Funds DepositsPublicFunds	59200000	USD
CY2021Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	77400000	USD
CY2020Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	135600000	USD
CY2021	ffnw	Interest Expense Time Depositsator Above Fdic Insurance Limit InterestExpenseTimeDepositsatorAboveFDICInsuranceLimit	1200000	USD
CY2020	ffnw	Interest Expense Time Depositsator Above Fdic Insurance Limit InterestExpenseTimeDepositsatorAboveFDICInsuranceLimit	3000000	USD
CY2021Q4	ffnw	Deposits Controlled By Related Parties DepositsControlledByRelatedParties	2200000	USD
CY2021	us-gaap	Gain Loss On Cash Flow Hedge Ineffectiveness Net GainLossOnCashFlowHedgeIneffectivenessNet	0	USD
CY2020Q4	ffnw	Deposits Controlled By Related Parties DepositsControlledByRelatedParties	2100000	USD
CY2021	ffnw	Interest Expense Deposit Liabilities Notice Of Withdrawal InterestExpenseDepositLiabilitiesNoticeOfWithdrawal	90000	USD
CY2020	ffnw	Interest Expense Deposit Liabilities Notice Of Withdrawal InterestExpenseDepositLiabilitiesNoticeOfWithdrawal	292000	USD
CY2021	ffnw	Interest Expense Deposit Liabilities Savings InterestExpenseDepositLiabilitiesSavings	6000	USD
CY2020	ffnw	Interest Expense Deposit Liabilities Savings InterestExpenseDepositLiabilitiesSavings	15000	USD
CY2021	ffnw	Interest Expense Deposit Liabilities Money Market InterestExpenseDepositLiabilitiesMoneyMarket	1601000	USD
CY2020	ffnw	Interest Expense Deposit Liabilities Money Market InterestExpenseDepositLiabilitiesMoneyMarket	3497000	USD
CY2021	ffnw	Interest Expense Deposit Liabilities Certificates Of Deposit InterestExpenseDepositLiabilitiesCertificatesOfDeposit	5519000	USD
CY2020	ffnw	Interest Expense Deposit Liabilities Certificates Of Deposit InterestExpenseDepositLiabilitiesCertificatesOfDeposit	9474000	USD
CY2021	us-gaap	Interest Expense Domestic Deposit Liabilities Brokered InterestExpenseDomesticDepositLiabilitiesBrokered	0	USD
CY2020	us-gaap	Interest Expense Domestic Deposit Liabilities Brokered InterestExpenseDomesticDepositLiabilitiesBrokered	727000	USD
CY2021	us-gaap	Interest Expense Deposits InterestExpenseDeposits	7216000	USD
CY2020	us-gaap	Interest Expense Deposits InterestExpenseDeposits	14005000	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	648100000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	614400000	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	120000000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	160000000	USD
CY2021Q4	ffnw	Federal Home Loan Bank Advances Activityfor Year Average Outstanding FederalHomeLoanBankAdvancesActivityforYearAverageOutstanding	115466000	USD
CY2020Q4	ffnw	Federal Home Loan Bank Advances Activityfor Year Average Outstanding FederalHomeLoanBankAdvancesActivityforYearAverageOutstanding	125392000	USD
CY2021Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	95000000	USD
CY2020Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	120000000	USD
CY2021Q4	ffnw	Federal Home Loan Bank Advances Activityfor Year Average Interest Rate During Period FederalHomeLoanBankAdvancesActivityforYearAverageInterestRateDuringPeriod	0.0139	Rate
CY2020Q4	ffnw	Federal Home Loan Bank Advances Activityfor Year Average Interest Rate During Period FederalHomeLoanBankAdvancesActivityforYearAverageInterestRateDuringPeriod	0.0131	Rate
CY2021Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate At Period End FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateAtPeriodEnd	0.0126	Rate
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate At Period End FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateAtPeriodEnd	0.0140	Rate
CY2021Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	95000000	USD
CY2021Q4	ffnw	Operating Lease Monthly Lease Payment OperatingLeaseMonthlyLeasePayment	69000	USD
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	1061000	USD
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	936000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3646000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3647000	USD
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	3805000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	3783000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y3M3D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y2M23D
CY2021Q4	us-gaap	Lessee Operating Lease Discount Rate LesseeOperatingLeaseDiscountRate	0.0191
CY2020Q4	us-gaap	Lessee Operating Lease Discount Rate LesseeOperatingLeaseDiscountRate	0.0210
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	839000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	723000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	622000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	526000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	332000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	1003000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	4045000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	240000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	3805000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	1500000	USD
CY2020	us-gaap	Gain Loss On Cash Flow Hedge Ineffectiveness Net GainLossOnCashFlowHedgeIneffectivenessNet	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	3410000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-2568000	USD
CY2021Q4	ffnw	Multiemployer Plans Funded Percentage MultiemployerPlansFundedPercentage	1.112
CY2020Q4	ffnw	Multiemployer Plans Funded Percentage MultiemployerPlansFundedPercentage	1.017
CY2021	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	175000	USD
CY2020	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	235000	USD
CY2021Q4	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	922000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	2400000	USD
CY2021	ffnw	Defined Contribution Plan Number Of Days Of Continuous Employment To Be Eligible DefinedContributionPlanNumberOfDaysOfContinuousEmploymentToBeEligible	P60D
CY2021	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.06
CY2021	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.50
CY2021Q4	us-gaap	Employee Stock Ownership Plan Esop Debt Structure Direct Loan Amount EmployeeStockOwnershipPlanESOPDebtStructureDirectLoanAmount	16900000	USD
CY2021	us-gaap	Employee Stock Ownership Plan Esop Shares Contributed To Esop EmployeeStockOwnershipPlanESOPSharesContributedToESOP	1692800	shares
CY2021Q4	ffnw	Employee Stock Ownership Plan Esop Shares Contributed To Esop Price Per Share EmployeeStockOwnershipPlanEsopSharesContributedToEsopPricePerShare	10.00
CY2021	ffnw	Employee Stock Ownership Plan Esop Interest Rate Of Loan From Company EmployeeStockOwnershipPlanEsopInterestRateOfLoanFromCompany	0.0488
CY2021	ffnw	Employee Stock Ownership Plan Esop Principal And Interest Payments From Esop EmployeeStockOwnershipPlanEsopPrincipalAndInterestPaymentsFromEsop	1600000	USD
CY2021	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	1696000	USD
CY2020	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	1200000	USD
CY2021	us-gaap	Employee Stock Ownership Plan Esop Dividends Paid To Esop EmployeeStockOwnershipPlanESOPDividendsPaidToESOP	87000	USD
CY2020	us-gaap	Employee Stock Ownership Plan Esop Dividends Paid To Esop EmployeeStockOwnershipPlanESOPDividendsPaidToESOP	124000	USD
CY2021Q4	us-gaap	Employee Stock Ownership Plan Esop Number Of Allocated Shares EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares	1608160	shares
CY2020Q4	us-gaap	Employee Stock Ownership Plan Esop Number Of Allocated Shares EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares	1495307	shares
CY2021Q4	us-gaap	Employee Stock Ownership Plan Esop Number Of Suspense Shares EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares	84640	shares
CY2020Q4	us-gaap	Employee Stock Ownership Plan Esop Number Of Suspense Shares EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares	197493	shares
CY2021Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	1692800	shares
CY2020Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	1692800	shares
CY2021Q4	us-gaap	Employee Stock Ownership Plan Esop Deferred Shares Fair Value EmployeeStockOwnershipPlanESOPDeferredSharesFairValue	1369000	USD
CY2020Q4	us-gaap	Employee Stock Ownership Plan Esop Deferred Shares Fair Value EmployeeStockOwnershipPlanESOPDeferredSharesFairValue	2251000	USD
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	708000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	427000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2690000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1937000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	235000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	5000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2925000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1942000	USD
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	3187000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	2205000	USD
CY2021	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	54000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	23000	USD
CY2021	ffnw	Effective Income Tax Rate Reconciliation Boli Amount EffectiveIncomeTaxRateReconciliationBOLIAmount	229000	USD
CY2020	ffnw	Effective Income Tax Rate Reconciliation Boli Amount EffectiveIncomeTaxRateReconciliationBOLIAmount	200000	USD
CY2021	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	21000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-40000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2925000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1942000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	3288000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	3187000	USD
CY2021Q4	ffnw	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserve For Unfunded Commitments DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserveForUnfundedCommitments	59000	USD
CY2020Q4	ffnw	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserve For Unfunded Commitments DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserveForUnfundedCommitments	74000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	194000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	309000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	594000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	45000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	385000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	424000	USD
CY2021Q4	ffnw	Deferred Tax Assets Other Real Estate Owned Market Value Adjustments DeferredTaxAssetsOtherRealEstateOwnedMarketValueAdjustments	0	USD
CY2020Q4	ffnw	Deferred Tax Assets Other Real Estate Owned Market Value Adjustments DeferredTaxAssetsOtherRealEstateOwnedMarketValueAdjustments	10000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	114000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	141000	USD
CY2021Q4	ffnw	Deferred Tax Assets Core Deposit Intangible DeferredTaxAssetsCoreDepositIntangible	53000	USD
CY2020Q4	ffnw	Deferred Tax Assets Core Deposit Intangible DeferredTaxAssetsCoreDepositIntangible	42000	USD
CY2021Q4	ffnw	Deferred Tax Assets Acquisitions DeferredTaxAssetsAcquisitions	20000	USD
CY2020Q4	ffnw	Deferred Tax Assets Acquisitions DeferredTaxAssetsAcquisitions	22000	USD
CY2021Q4	ffnw	Deferred Tax Assets Split Dollar Life Insurance DeferredTaxAssetsSplitDollarLifeInsurance	87000	USD
CY2020Q4	ffnw	Deferred Tax Assets Split Dollar Life Insurance DeferredTaxAssetsSplitDollarLifeInsurance	78000	USD
CY2021Q4	ffnw	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	799000	USD
CY2020Q4	ffnw	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	794000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	4999000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	5720000	USD
CY2021Q4	ffnw	Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends	3000	USD
CY2020Q4	ffnw	Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends	4000	USD
CY2021Q4	ffnw	Deferred Tax Liabilities Loan Origination Fees DeferredTaxLiabilitiesLoanOriginationFees	1098000	USD
CY2021Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.0500
CY2020Q4	ffnw	Deferred Tax Liabilities Loan Origination Fees DeferredTaxLiabilitiesLoanOriginationFees	1031000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	312000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	0	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	42000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	392000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1818000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1785000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	54000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	42000	USD
CY2021Q4	ffnw	Deferred Tax Liability Right Of Use Asset DeferredTaxLiabilityRightOfUseAsset	766000	USD
CY2020Q4	ffnw	Deferred Tax Liability Right Of Use Asset DeferredTaxLiabilityRightOfUseAsset	766000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	56000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	59000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	4149000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	4079000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	850000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	1641000	USD
CY2020Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	0	USD
CY2021Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	0	USD
CY2021Q4	us-gaap	Bad Debt Reserve For Tax Purposes Of Qualified Lender BadDebtReserveForTaxPurposesOfQualifiedLender	4500000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2021Q4	us-gaap	Capital Capital	160840000	USD
CY2021Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1548
CY2021Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	83121000	USD
CY2021Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800
CY2021Q4	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	103901000	USD
CY2021Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.1000
CY2021Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	147816000	USD
CY2021Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1423
CY2021Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	62340000	USD
CY2021Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0600
CY2021Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized TierOneRiskBasedCapitalRequiredToBeWellCapitalized	83121000	USD
CY2021Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.0800
CY2021Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	147816000	USD
CY2021Q4	ffnw	Common Equity Tier One Capitalto Risk Weighted Assets CommonEquityTierOneCapitaltoRiskWeightedAssets	0.1423
CY2021Q4	ffnw	Common Equity Tier One Capital For Capital Adequacy CommonEquityTierOneCapitalForCapitalAdequacy	46755000	USD
CY2021Q4	ffnw	Common Equity Tierone Capitalto Risk Weighted Assets For Capital Adequacy CommonEquityTieroneCapitaltoRiskWeightedAssetsForCapitalAdequacy	0.0450
CY2021Q4	ffnw	Common Equity Tier One Capitaltobe Well Capitalized CommonEquityTierOneCapitaltobeWellCapitalized	67536000	USD
CY2021Q4	ffnw	Common Equity Tier One Capitaltobe Well Capitalizedto Risk Weighted Assets CommonEquityTierOneCapitaltobeWellCapitalizedtoRiskWeightedAssets	0.0650
CY2021Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	147816000	USD
CY2021Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.1034
CY2021Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	57191000	USD
CY2021Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400
CY2021Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized TierOneLeverageCapitalRequiredToBeWellCapitalized	71489000	USD
CY2020Q4	us-gaap	Capital Capital	152610000	USD
CY2020Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1557
CY2020Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	78406000	USD
CY2020Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800
CY2020Q4	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	98008000	USD
CY2020Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.1000
CY2020Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	140319000	USD
CY2020Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1432
CY2020Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	58805000	USD
CY2020Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0600
CY2020Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized TierOneRiskBasedCapitalRequiredToBeWellCapitalized	78406000	USD
CY2020Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.0800
CY2020Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	140319000	USD
CY2020Q4	ffnw	Common Equity Tier One Capitalto Risk Weighted Assets CommonEquityTierOneCapitaltoRiskWeightedAssets	0.1432
CY2020Q4	ffnw	Common Equity Tier One Capital For Capital Adequacy CommonEquityTierOneCapitalForCapitalAdequacy	44103000	USD
CY2020Q4	ffnw	Common Equity Tierone Capitalto Risk Weighted Assets For Capital Adequacy CommonEquityTieroneCapitaltoRiskWeightedAssetsForCapitalAdequacy	0.0450
CY2020Q4	ffnw	Common Equity Tier One Capitaltobe Well Capitalized CommonEquityTierOneCapitaltobeWellCapitalized	63705000	USD
CY2020Q4	ffnw	Common Equity Tier One Capitaltobe Well Capitalizedto Risk Weighted Assets CommonEquityTierOneCapitaltobeWellCapitalizedtoRiskWeightedAssets	0.0650
CY2020Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	140319000	USD
CY2020Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.1029
CY2020Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	54551000	USD
CY2020Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400
CY2020Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized TierOneLeverageCapitalRequiredToBeWellCapitalized	68189000	USD
CY2020Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.0500
CY2021Q4	ffnw	Conservation Buffer ConservationBuffer	0.0748
CY2021Q4	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	77400000	USD
CY2020Q4	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	100600000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	12249000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	8556000	USD
CY2021	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	-58000	USD
CY2020	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	-14000	USD
CY2021	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	32000	USD
CY2020	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	86000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3862000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	4442000	USD
CY2021Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	0	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	0	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	12191000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	8542000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9340997	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9734493	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	95584	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	20460	shares
CY2021	ffnw	Incremental Common Shares Attributableto Dilutive Effectof Restricted Stock Grants IncrementalCommonSharesAttributabletoDilutiveEffectofRestrictedStockGrants	17914	shares
CY2020	ffnw	Incremental Common Shares Attributableto Dilutive Effectof Restricted Stock Grants IncrementalCommonSharesAttributabletoDilutiveEffectofRestrictedStockGrants	3691	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9454495	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9758644	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.31
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.88
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.29
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.88
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	203000	shares

Files In Submission

Name	View Source	Status
0000939057-22-000076-index-headers.html	Edgar Link	pending
0000939057-22-000076-index.html	Edgar Link	pending
0000939057-22-000076.txt	Edgar Link	pending
0000939057-22-000076-xbrl.zip	Edgar Link	pending
ffnw-20211231.htm	Edgar Link	pending
ffnw-20211231.xsd	Edgar Link	pending
ffnw-20211231x10kexx21.htm	Edgar Link	pending
ffnw-20211231x10kexx23.htm	Edgar Link	pending
ffnw-20211231x10kexx311.htm	Edgar Link	pending
ffnw-20211231x10kexx312.htm	Edgar Link	pending
ffnw-20211231x10kexx321.htm	Edgar Link	pending
ffnw-20211231x10kexx322.htm	Edgar Link	pending
ffnw-20211231_cal.xml	Edgar Link	unprocessable
ffnw-20211231_def.xml	Edgar Link	unprocessable
ffnw-20211231_htm.xml	Edgar Link	completed
ffnw-20211231_lab.xml	Edgar Link	unprocessable
ffnw-20211231_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$FFNW
First Financial Northwest, Inc. Stock $ffnw

2021 Q4 Form 10-K Financial Statement

#000093905722000076 Filed on March 11, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FFNW First Financial Northwest, Inc. Stock $ffnw

2021 Q4 Form 10-K Financial Statement

#000093905722000076 Filed on March 11, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FFNW
First Financial Northwest, Inc. Stock $ffnw