$BFIN
BankFinancial CORP Stock $bfin

$bfin Overview Financials Valuation SEC Filings Company Website

2024 Q4 Form 10-Q Financial Statement

#000143774924033339 Filed on November 05, 2024

Income Statement

Concept	2024 Q4	2024 Q3	2023 Q3
Revenue		$915.0K	$836.0K
YoY Change		9.45%	0.84%
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		-$24.00K	$450.0K
YoY Change		-105.33%	131.96%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense			$3.940M
YoY Change			290.87%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income		$2.574M	$3.268M
YoY Change		-21.24%	-23.25%
Income Tax		$581.0K	$899.0K
% Of Pretax Income		22.57%	27.51%
Net Earnings		$1.993M	$2.369M
YoY Change		-15.87%	-26.45%
Net Earnings / Revenue		217.81%	283.37%
Basic Earnings Per Share		$0.16	$0.19
Diluted Earnings Per Share		$0.16	$0.19
COMMON SHARES
Basic Shares Outstanding	12.46M	12.46M	12.60M
Diluted Shares Outstanding

Balance Sheet

Concept	2024 Q3	2023 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$403.2M	$330.0M
YoY Change	22.18%	-20.58%
Cash & Equivalents	$138.3M	$171.6M
Short-Term Investments	$264.9M	$158.4M
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$22.67M	$22.91M
YoY Change	-1.05%	-8.16%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$3.590M	$5.500M
YoY Change	-34.73%	6.67%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$1.418B	$1.505B
YoY Change	-5.83%	-7.6%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$12.20M	$16.00M
YoY Change	-23.74%	-14.59%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$12.20M	$16.00M
YoY Change	-23.74%	-14.59%
LONG-TERM LIABILITIES
Long-Term Debt	$18.73M	$19.70M
YoY Change	-4.94%	0.39%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$18.73M	$19.70M
YoY Change	-4.94%	0.39%
TOTAL LIABILITIES
Total Short-Term Liabilities	$12.20M	$16.00M
Total Long-Term Liabilities	$18.73M	$19.70M
Total Liabilities	$1.259B	$1.352B
YoY Change	-6.89%	-8.55%
SHAREHOLDERS EQUITY
Retained Earnings	$76.52M	$73.60M
YoY Change	3.97%	5.66%
Common Stock	$125.0K	$125.0K
YoY Change	0.0%	-3.1%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$159.1M	$153.8M
YoY Change
Total Liabilities & Shareholders Equity	$1.418B	$1.505B
YoY Change	-5.83%	-7.6%

Cashflow Statement

Concept	2024 Q3	2023 Q3
OPERATING ACTIVITIES
Net Income	$1.993M	$2.369M
YoY Change	-15.87%	-26.45%
Depreciation, Depletion And Amortization	-$24.00K	$450.0K
YoY Change	-105.33%	131.96%
Cash From Operating Activities	$2.996M	$4.890M
YoY Change	-38.73%	4.82%
INVESTING ACTIVITIES
Capital Expenditures	$450.0K	$480.0K
YoY Change	-6.25%	-234.45%
Acquisitions
YoY Change
Other Investing Activities	$45.18M	$77.35M
YoY Change	-41.59%	-297.3%
Cash From Investing Activities	$44.73M	$76.87M
YoY Change	-41.81%	-294.3%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-61.22M	-25.54M
YoY Change	139.71%	31.36%
NET CHANGE
Cash From Operating Activities	2.996M	4.890M
Cash From Investing Activities	44.73M	76.87M
Cash From Financing Activities	-61.22M	-25.54M
Net Change In Cash	-13.50M	56.22M
YoY Change	-124.01%	-203.46%
FREE CASH FLOW
Cash From Operating Activities	$2.996M	$4.890M
Capital Expenditures	$450.0K	$480.0K
Free Cash Flow	$2.546M	$4.410M
YoY Change	-42.27%	-12.19%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Registrant Name EntityRegistrantName	BankFinancial CORP
	dei	Entity Central Index Key EntityCentralIndexKey	0001303942
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2024
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	7899000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	8345000	usd
CY2024Q3	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
CY2024Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	25000000
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	25000000
CY2024Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2024Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2023Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2024Q3	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
CY2024Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000
CY2024Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	12460678
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	12475881
CY2023Q3	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	53088
CY2023Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.1
CY2024Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.1
	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	195207
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.3
	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	15203
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.3
CY2024Q3	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	0	usd
CY2023Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	0	usd
CY2024Q3	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	0	usd
	bfin	Foreclosed Assets Valuation Adjustments With Valuation Reserve ForeclosedAssetsValuationAdjustmentsWithValuationReserve	0	usd
	bfin	Foreclosed Assets Valuation Adjustments With Valuation Reserve ForeclosedAssetsValuationAdjustmentsWithValuationReserve	48000	usd
CY2024Q3	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2024Q3	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2024Q3	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2024Q3	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2024-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	0-51331
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	75-3199276
	dei	Entity Address Address Line1 EntityAddressAddressLine1	60 North Frontage Road
	dei	Entity Address City Or Town EntityAddressCityOrTown	Burr Ridge
	dei	Entity Address State Or Province EntityAddressStateOrProvince	IL
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	60527
	dei	City Area Code CityAreaCode	800
	dei	Local Phone Number LocalPhoneNumber	894-6900
	dei	Security12b Title Security12bTitle	Common Stock, par value $0.01 per share
	dei	Trading Symbol TradingSymbol	BFIN
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	true
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2024Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	12460678
CY2024Q3	us-gaap	Cash And Due From Banks CashAndDueFromBanks	19412000	usd
CY2023Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	19781000	usd
CY2024Q3	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	118866000	usd
CY2023Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	158703000	usd
CY2024Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	138278000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	178484000	usd
CY2024Q3	us-gaap	Short Term Investments ShortTermInvestments	22005000	usd
CY2023Q4	us-gaap	Short Term Investments ShortTermInvestments	29513000	usd
CY2024Q3	us-gaap	Marketable Securities MarketableSecurities	264905000	usd
CY2023Q4	us-gaap	Marketable Securities MarketableSecurities	153203000	usd
CY2024Q3	us-gaap	Notes Receivable Net NotesReceivableNet	923939000	usd
CY2023Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1050761000	usd
CY2024Q3	us-gaap	Foreclosed Assets ForeclosedAssets	1966000	usd
CY2023Q4	us-gaap	Foreclosed Assets ForeclosedAssets	2777000	usd
CY2024Q3	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	7490000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	7490000	usd
CY2024Q3	us-gaap	Assets Held For Sale Not Part Of Disposal Group AssetsHeldForSaleNotPartOfDisposalGroup	0	usd
CY2023Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group AssetsHeldForSaleNotPartOfDisposalGroup	523000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	22674000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	22950000	usd
CY2024Q3	us-gaap	Interest Receivable InterestReceivable	6929000	usd
CY2023Q4	us-gaap	Interest Receivable InterestReceivable	7542000	usd
CY2024Q3	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	18277000	usd
CY2023Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	18469000	usd
CY2024Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	3590000	usd
CY2023Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	4512000	usd
CY2024Q3	us-gaap	Other Assets OtherAssets	7607000	usd
CY2023Q4	us-gaap	Other Assets OtherAssets	11160000	usd
CY2024Q3	us-gaap	Assets Assets	1417660000	usd
CY2023Q4	us-gaap	Assets Assets	1487384000	usd
CY2024Q3	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	226882000	usd
CY2023Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	260851000	usd
CY2024Q3	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	972530000	usd
CY2023Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1000772000	usd
CY2024Q3	us-gaap	Deposits Deposits	1199412000	usd
CY2023Q4	us-gaap	Deposits Deposits	1261623000	usd
CY2024Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	20000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	25000000	usd
CY2024Q3	us-gaap	Subordinated Debt SubordinatedDebt	18726000	usd
CY2023Q4	us-gaap	Subordinated Debt SubordinatedDebt	19678000	usd
CY2024Q3	us-gaap	Advance Payments By Borrowers For Taxes And Insurance AdvancePaymentsByBorrowersForTaxesAndInsurance	8213000	usd
CY2023Q4	us-gaap	Advance Payments By Borrowers For Taxes And Insurance AdvancePaymentsByBorrowersForTaxesAndInsurance	9003000	usd
CY2024Q3	bfin	Accrued Interest Payable And Other Liabilities AccruedInterestPayableAndOtherLiabilities	12201000	usd
CY2023Q4	bfin	Accrued Interest Payable And Other Liabilities AccruedInterestPayableAndOtherLiabilities	16697000	usd
CY2024Q3	us-gaap	Liabilities Liabilities	1258552000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	1332001000	usd
CY2024Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2024Q3	us-gaap	Common Stock Value CommonStockValue	125000	usd
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CY2024Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	83301000	usd
CY2023Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	83457000	usd
CY2024Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	76524000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	74426000	usd
CY2024Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-842000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2625000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	159108000	usd
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CY2024Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1417660000	usd
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CY2024Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	12300000	usd
CY2023Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	14276000	usd
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	39002000	usd
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	43014000	usd
CY2024Q3	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	47000	usd
CY2023Q3	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	48000	usd
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	148000	usd
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	147000	usd
CY2024Q3	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	2572000	usd
CY2023Q3	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	716000	usd
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	6024000	usd
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	2522000	usd
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	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	6712000	usd
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	3549000	usd
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	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	51886000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	49232000	usd
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	us-gaap	Interest Expense Deposits InterestExpenseDeposits	13735000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	8531000	usd
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	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	1387000	usd
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	1304000	usd
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	us-gaap	Interest Expense Operating InterestExpenseOperating	15122000	usd
	us-gaap	Interest Expense Operating InterestExpenseOperating	9835000	usd
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	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	36764000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	39397000	usd
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	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-4000	usd
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CY2023Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	12818000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	36389000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	39401000	usd
CY2024Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	915000	usd
CY2023Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	836000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2558000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2482000	usd
CY2024Q3	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	97000	usd
CY2023Q3	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	98000	usd
	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	350000	usd
	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	368000	usd
CY2024Q3	bfin	Noninterest Income From Trust NoninterestIncomeFromTrust	405000	usd
CY2023Q3	bfin	Noninterest Income From Trust NoninterestIncomeFromTrust	290000	usd
	bfin	Noninterest Income From Trust NoninterestIncomeFromTrust	1204000	usd
	bfin	Noninterest Income From Trust NoninterestIncomeFromTrust	933000	usd
CY2024Q3	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	0	usd
CY2023Q3	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	0	usd
	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	0	usd
	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	-454000	usd
CY2024Q3	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-20000	usd
CY2023Q3	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	usd
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-104000	usd
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	9000	usd
CY2024Q3	bfin	Valuation Reserve On Premises Heldforsale ValuationReserveOnPremisesHeldforsale	-0	usd
CY2023Q3	bfin	Valuation Reserve On Premises Heldforsale ValuationReserveOnPremisesHeldforsale	-0	usd
	bfin	Valuation Reserve On Premises Heldforsale ValuationReserveOnPremisesHeldforsale	-0	usd
	bfin	Valuation Reserve On Premises Heldforsale ValuationReserveOnPremisesHeldforsale	585000	usd
CY2024Q3	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	-14000	usd
CY2023Q3	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	-88000	usd
	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	-192000	usd
	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	-259000	usd
CY2024Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2023Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	107000	usd
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2024Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	99000	usd
CY2023Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	104000	usd
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	296000	usd
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	298000	usd
CY2024Q3	us-gaap	Noninterest Income NoninterestIncome	1482000	usd
CY2023Q3	us-gaap	Noninterest Income NoninterestIncome	1240000	usd
	us-gaap	Noninterest Income NoninterestIncome	4219000	usd
	us-gaap	Noninterest Income NoninterestIncome	2792000	usd
CY2024Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	5441000	usd
CY2023Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	5369000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	17436000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	16553000	usd
CY2024Q3	us-gaap	Occupancy Net OccupancyNet	1532000	usd
CY2023Q3	us-gaap	Occupancy Net OccupancyNet	2046000	usd
	us-gaap	Occupancy Net OccupancyNet	5634000	usd
	us-gaap	Occupancy Net OccupancyNet	6115000	usd
CY2024Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	117000	usd
CY2023Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	171000	usd
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	319000	usd
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	623000	usd
CY2024Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	971000	usd
CY2023Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	944000	usd
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	3022000	usd
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	2758000	usd
CY2024Q3	us-gaap	Professional Fees ProfessionalFees	299000	usd
CY2023Q3	us-gaap	Professional Fees ProfessionalFees	366000	usd
	us-gaap	Professional Fees ProfessionalFees	1135000	usd
	us-gaap	Professional Fees ProfessionalFees	1038000	usd
CY2024Q3	us-gaap	Supplies And Postage Expense SuppliesAndPostageExpense	281000	usd
CY2023Q3	us-gaap	Supplies And Postage Expense SuppliesAndPostageExpense	311000	usd
	us-gaap	Supplies And Postage Expense SuppliesAndPostageExpense	859000	usd
	us-gaap	Supplies And Postage Expense SuppliesAndPostageExpense	965000	usd
CY2024Q3	bfin	Federal Deposit Insurance Corporation Premium Expense Income FederalDepositInsuranceCorporationPremiumExpenseIncome	156000	usd
CY2023Q3	bfin	Federal Deposit Insurance Corporation Premium Expense Income FederalDepositInsuranceCorporationPremiumExpenseIncome	222000	usd
	bfin	Federal Deposit Insurance Corporation Premium Expense Income FederalDepositInsuranceCorporationPremiumExpenseIncome	461000	usd
	bfin	Federal Deposit Insurance Corporation Premium Expense Income FederalDepositInsuranceCorporationPremiumExpenseIncome	658000	usd
CY2024Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1287000	usd
CY2023Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1361000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	4119000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	3592000	usd
CY2024Q3	us-gaap	Noninterest Expense NoninterestExpense	10084000	usd
CY2023Q3	us-gaap	Noninterest Expense NoninterestExpense	10790000	usd
	us-gaap	Noninterest Expense NoninterestExpense	32985000	usd
	us-gaap	Noninterest Expense NoninterestExpense	32302000	usd
CY2024Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2574000	usd
CY2023Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3268000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	7623000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	9891000	usd
CY2024Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	581000	usd
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	899000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1786000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2577000	usd
CY2024Q3	us-gaap	Profit Loss ProfitLoss	1993000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	2369000	usd
	us-gaap	Profit Loss ProfitLoss	5837000	usd
	us-gaap	Profit Loss ProfitLoss	7314000	usd
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.19
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.47
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.58
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	12460678
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	12578494
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	12463127
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	12655305
CY2024Q3	us-gaap	Profit Loss ProfitLoss	1993000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	2369000	usd
	us-gaap	Profit Loss ProfitLoss	5837000	usd
	us-gaap	Profit Loss ProfitLoss	7314000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	1193000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	1099000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	2409000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	2260000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	310000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	286000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	626000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	588000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	883000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	813000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1783000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1672000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-0	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-0	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-0	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-454000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-119000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-0	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-0	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-0	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-335000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	883000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	813000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1783000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2007000	usd
CY2024Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	2876000	usd
CY2023Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	3182000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	7620000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	9321000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	152303000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	2369000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	813000	usd
CY2023Q3	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	471000	usd
CY2023Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1259000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	153755000	usd
CY2024Q2	us-gaap	Stockholders Equity StockholdersEquity	157478000	usd
CY2024Q3	us-gaap	Profit Loss ProfitLoss	1993000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	883000	usd
CY2024Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1246000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	159108000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	151671000	usd
	us-gaap	Profit Loss ProfitLoss	7314000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2007000	usd
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	1717000	usd
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3801000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	153755000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	155383000	usd
	us-gaap	Profit Loss ProfitLoss	5837000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1783000	usd
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	156000	usd
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3739000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	159108000	usd
	us-gaap	Profit Loss ProfitLoss	5837000	usd
	us-gaap	Profit Loss ProfitLoss	7314000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	435000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	85000	usd
	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	-60000	usd
	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	-89000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	786000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1093000	usd
	us-gaap	Increase Decrease In Loans Deferred Income IncreaseDecreaseInLoansDeferredIncome	-303000	usd
	us-gaap	Increase Decrease In Loans Deferred Income IncreaseDecreaseInLoansDeferredIncome	123000	usd
	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	-0	usd
	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	-454000	usd
	bfin	Valuation Reserve On Premises Heldforsale ValuationReserveOnPremisesHeldforsale	0	usd
	bfin	Valuation Reserve On Premises Heldforsale ValuationReserveOnPremisesHeldforsale	585000	usd
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-104000	usd
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	9000	usd
	bfin	Gain Loss On Sale Of Foreclosed Assets GainLossOnSaleOfForeclosedAssets	-227000	usd
	bfin	Gain Loss On Sale Of Foreclosed Assets GainLossOnSaleOfForeclosedAssets	-15000	usd
	bfin	Foreclosed Assets Writedown ForeclosedAssetsWritedown	-0	usd
	bfin	Foreclosed Assets Writedown ForeclosedAssetsWritedown	-70000	usd
	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	-0	usd
	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	-48000	usd
	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	-192000	usd
	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	-259000	usd
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	107000	usd
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-0	usd
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-613000	usd
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	1005000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	17000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-1362000	usd
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-5015000	usd
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-4841000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3298000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	5218000	usd
	us-gaap	Payments For Proceeds From Other Interest Earning Assets PaymentsForProceedsFromOtherInterestEarningAssets	-7508000	usd
	us-gaap	Payments For Proceeds From Other Interest Earning Assets PaymentsForProceedsFromOtherInterestEarningAssets	492000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	169455000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	12000000	usd
	bfin	Proceeds From Principal Repayments Of Investments ProceedsFromPrincipalRepaymentsOfInvestments	543000	usd
	bfin	Proceeds From Principal Repayments Of Investments ProceedsFromPrincipalRepaymentsOfInvestments	540000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	42631000	usd
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	274015000	usd
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	-0	usd
	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	-125912000	usd
	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	-118262000	usd
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	701000	usd
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	362000	usd
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	537000	usd
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	690000	usd
	bfin	Payments To Acquire Premises And Equipment Net PaymentsToAcquirePremisesAndEquipmentNet	1343000	usd
	bfin	Payments To Acquire Premises And Equipment Net PaymentsToAcquirePremisesAndEquipmentNet	1311000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	29298000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	172682000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-62211000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-99106000	usd
	bfin	Net Change In Advance Payments By Borrowers For Taxes And Insurance NetChangeInAdvancePaymentsByBorrowersForTaxesAndInsurance	-790000	usd
	bfin	Net Change In Advance Payments By Borrowers For Taxes And Insurance NetChangeInAdvancePaymentsByBorrowersForTaxesAndInsurance	6514000	usd
	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	0	usd
	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	35000000	usd
	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	5000000	usd
	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	10000000	usd
	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	906000	usd
	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	-0	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	156000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1717000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	3739000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	3801000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-72802000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-73110000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-40206000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	104790000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	178484000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	66771000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	138278000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	171561000	usd
	us-gaap	Interest Paid Net InterestPaidNet	14968000	usd
	us-gaap	Interest Paid Net InterestPaidNet	9405000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1719000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2760000	usd
	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	0	usd
	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	20000	usd
	bfin	Assets Transferred To Premises Held For Sale AssetsTransferredToPremisesHeldForSale	0	usd
	bfin	Assets Transferred To Premises Held For Sale AssetsTransferredToPremisesHeldForSale	1799000	usd
	bfin	Loans Transferred To Foreclosed Assets LoansTransferredToForeclosedAssets	117000	usd
	bfin	Loans Transferred To Foreclosed Assets LoansTransferredToForeclosedAssets	921000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	592000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	usd
	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i><b>Use of Estimates</b></i>: The preparation of the consolidated financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Although these estimates and assumptions are based on the best available information, actual information and actual results could differ from those estimates.</p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"> </p>
CY2024Q3	bfin	Factored Receivable Unpaid Principal Balance FactoredReceivableUnpaidPrincipalBalance	2300000	usd
CY2023Q4	bfin	Factored Receivable Unpaid Principal Balance FactoredReceivableUnpaidPrincipalBalance	5900000	usd
CY2024Q3	bfin	Factored Receivable Customer Reserves FactoredReceivableCustomerReserves	675000	usd
CY2023Q4	bfin	Factored Receivable Customer Reserves FactoredReceivableCustomerReserves	2100000	usd
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i><b>Reclassifications</b></i>: Certain reclassifications have been made in the prior period’s financial statements to conform them to the current period’s presentation with <em style="font: inherit;">no</em> impact on previously reported net income or stockholders' equity.</p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">These unaudited consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form <em style="font: inherit;">10</em>-K for the year ended <em style="font: inherit;"> December 31, 2023</em>, as filed with the SEC.</p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"> </p>
CY2024Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1993000	usd
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2369000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	5837000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	7314000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	12460678
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	12578494
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	12463127
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	12655305
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.19
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.47
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.58
CY2024Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	266043000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	120000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1258000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	264905000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	156750000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	46000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	3593000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	153203000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis	135578000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Fair Value AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	134776000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis	126555000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	126252000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	262133000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	261028000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	266043000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	264905000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	8	pure
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	69871000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	129000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	97	pure
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	65166000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	1129000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	105	pure
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	135037000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	1258000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	2	pure
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	8987000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	13000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	198	pure
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	134306000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	3580000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	200	pure
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	143293000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	3593000	usd
CY2024Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	usd
CY2023Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	42631000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	usd
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	usd
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	-0	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	-0	usd
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	-0	usd
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	454000	usd
CY2024Q3	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	931838000	usd
CY2023Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	1059106000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	7899000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	8345000	usd
CY2024Q3	us-gaap	Notes Receivable Net NotesReceivableNet	923939000	usd
CY2023Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1050761000	usd
CY2024Q3	us-gaap	Financing Receivable Unamortized Loan Fee Cost FinancingReceivableUnamortizedLoanFeeCost	1400000	usd
CY2023Q4	us-gaap	Financing Receivable Unamortized Loan Fee Cost FinancingReceivableUnamortizedLoanFeeCost	1700000	usd
CY2024Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	8142000	usd
CY2024Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	472000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	743000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	28000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	7899000	usd
CY2023Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	9226000	usd
CY2023Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	180000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	903000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	56000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	8559000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	8345000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	435000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	936000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	55000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	7899000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	8129000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	85000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1649000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	87000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	8559000	usd
CY2024Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	22473000	usd
CY2024Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	909365000	usd
CY2024Q3	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	931838000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	0	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	7899000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	7899000	usd
CY2023Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	22049000	usd
CY2023Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	1037057000	usd
CY2023Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	1059106000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	0	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	8345000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	8345000	usd
CY2024Q3	bfin	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance1 ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance1	23591000	usd
CY2024Q3	bfin	Impaired Financing Receivable With No Related Allowance Recorded Investment1 ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment1	22473000	usd
CY2024Q3	bfin	Impaired Financing Receivable With No Related Allowance Partial Charge Off ImpairedFinancingReceivableWithNoRelatedAllowancePartialChargeOff	1193000	usd
CY2024Q3	bfin	Impaired Financing Receivable With No Related Allowance Average Recorded Investment1 ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment1	22052000	usd
CY2024Q3	bfin	Impaired Financing Receivable With No Related Allowance Interest Income Cash Basis Method1 ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod1	3000	usd
	bfin	Impaired Financing Receivable With No Related Allowance Average Recorded Investment1 ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment1	21320000	usd
	bfin	Impaired Financing Receivable With No Related Allowance Interest Income Cash Basis Method1 ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod1	43000	usd
CY2023Q4	bfin	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance1 ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance1	24020000	usd
CY2023Q4	bfin	Impaired Financing Receivable With No Related Allowance Recorded Investment1 ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment1	22049000	usd
CY2023Q4	bfin	Impaired Financing Receivable With No Related Allowance Partial Charge Off ImpairedFinancingReceivableWithNoRelatedAllowancePartialChargeOff	450000	usd
CY2023	bfin	Impaired Financing Receivable With No Related Allowance Average Recorded Investment1 ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment1	16618000	usd
CY2023	bfin	Impaired Financing Receivable With No Related Allowance Interest Income Cash Basis Method1 ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod1	39000	usd
CY2024Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	22331000	usd
CY2024Q3	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	21331000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	1007000	usd
CY2024Q3	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	2200000	usd
CY2023Q4	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	1400000	usd
CY2024Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	22331000	usd
CY2024Q3	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	931838000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	21331000	usd
CY2023Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	1059106000	usd
CY2024Q3	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	931838000	usd
CY2023Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	1059106000	usd
CY2024Q3	bfin	Other Real Estate Owned Gross OtherRealEstateOwnedGross	0	usd
CY2024Q3	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	-0	usd
CY2024Q3	us-gaap	Other Real Estate OtherRealEstate	0	usd
CY2023Q4	bfin	Other Real Estate Owned Gross OtherRealEstateOwnedGross	472000	usd
CY2023Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	67000	usd
CY2023Q4	us-gaap	Other Real Estate OtherRealEstate	405000	usd
CY2024Q3	bfin	Other Foreclosed Assets Gross OtherForeclosedAssetsGross	1966000	usd
CY2024Q3	bfin	Other Foreclosed Assets Valuation Allowance Ending Balance OtherForeclosedAssetsValuationAllowanceEndingBalance	-0	usd
CY2024Q3	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	1966000	usd
CY2023Q4	bfin	Other Foreclosed Assets Gross OtherForeclosedAssetsGross	2416000	usd
CY2023Q4	bfin	Other Foreclosed Assets Valuation Allowance Ending Balance OtherForeclosedAssetsValuationAllowanceEndingBalance	44000	usd
CY2023Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	2372000	usd
CY2024Q3	bfin	Other Real Estate Owned And Other Foreclosed Assets Gross OtherRealEstateOwnedAndOtherForeclosedAssetsGross	1966000	usd
CY2024Q3	bfin	Real Estate Owned And Other Foreclosed Assets Valuation Allowance Ending Balance RealEstateOwnedAndOtherForeclosedAssetsValuationAllowanceEndingBalance	-0	usd
CY2024Q3	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	1966000	usd
CY2023Q4	bfin	Other Real Estate Owned And Other Foreclosed Assets Gross OtherRealEstateOwnedAndOtherForeclosedAssetsGross	2888000	usd
CY2023Q4	bfin	Real Estate Owned And Other Foreclosed Assets Valuation Allowance Ending Balance RealEstateOwnedAndOtherForeclosedAssetsValuationAllowanceEndingBalance	111000	usd
CY2023Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	2777000	usd
CY2024Q2	us-gaap	Foreclosed Assets ForeclosedAssets	1898000	usd
CY2023Q2	us-gaap	Foreclosed Assets ForeclosedAssets	950000	usd
CY2023Q4	us-gaap	Foreclosed Assets ForeclosedAssets	2777000	usd
CY2022Q4	us-gaap	Foreclosed Assets ForeclosedAssets	476000	usd
CY2024Q3	bfin	Foreclosed Assets Additions ForeclosedAssetsAdditions	68000	usd
CY2023Q3	bfin	Foreclosed Assets Additions ForeclosedAssetsAdditions	0	usd
	bfin	Foreclosed Assets Additions ForeclosedAssetsAdditions	117000	usd
	bfin	Foreclosed Assets Additions ForeclosedAssetsAdditions	921000	usd
CY2024Q3	bfin	Foreclosed Assets Valuation Increase During Period ForeclosedAssetsValuationIncreaseDuringPeriod	0	usd
CY2023Q3	bfin	Foreclosed Assets Valuation Increase During Period ForeclosedAssetsValuationIncreaseDuringPeriod	-48000	usd
	bfin	Foreclosed Assets Valuation Increase During Period ForeclosedAssetsValuationIncreaseDuringPeriod	0	usd
	bfin	Foreclosed Assets Valuation Increase During Period ForeclosedAssetsValuationIncreaseDuringPeriod	-48000	usd
CY2024Q3	bfin	Foreclosed Assets Valuation Reductions From Sales ForeclosedAssetsValuationReductionsFromSales	0	usd
CY2023Q3	bfin	Foreclosed Assets Valuation Reductions From Sales ForeclosedAssetsValuationReductionsFromSales	0	usd
	bfin	Foreclosed Assets Valuation Reductions From Sales ForeclosedAssetsValuationReductionsFromSales	111000	usd
	bfin	Foreclosed Assets Valuation Reductions From Sales ForeclosedAssetsValuationReductionsFromSales	0	usd
CY2024Q3	bfin	Foreclosed Assets Writedown ForeclosedAssetsWritedown	0	usd
CY2023Q3	bfin	Foreclosed Assets Writedown ForeclosedAssetsWritedown	0	usd
	bfin	Foreclosed Assets Writedown ForeclosedAssetsWritedown	0	usd
	bfin	Foreclosed Assets Writedown ForeclosedAssetsWritedown	-70000	usd
CY2024Q3	bfin	Foreclosed Assets Disposals ForeclosedAssetsDisposals	-0	usd
CY2023Q3	bfin	Foreclosed Assets Disposals ForeclosedAssetsDisposals	-0	usd
	bfin	Foreclosed Assets Disposals ForeclosedAssetsDisposals	1039000	usd
	bfin	Foreclosed Assets Disposals ForeclosedAssetsDisposals	377000	usd
CY2024Q3	us-gaap	Foreclosed Assets ForeclosedAssets	1966000	usd
CY2023Q3	us-gaap	Foreclosed Assets ForeclosedAssets	902000	usd
CY2024Q3	us-gaap	Foreclosed Assets ForeclosedAssets	1966000	usd
CY2023Q3	us-gaap	Foreclosed Assets ForeclosedAssets	902000	usd
CY2024Q2	bfin	Foreclosed Assets Valuation Allowance ForeclosedAssetsValuationAllowance	0	usd
CY2023Q2	bfin	Foreclosed Assets Valuation Allowance ForeclosedAssetsValuationAllowance	0	usd
CY2023Q4	bfin	Foreclosed Assets Valuation Allowance ForeclosedAssetsValuationAllowance	111000	usd
CY2022Q4	bfin	Foreclosed Assets Valuation Allowance ForeclosedAssetsValuationAllowance	0	usd
CY2024Q3	bfin	Foreclosed Assets Valuation Allowance Valuation Increase ForeclosedAssetsValuationAllowanceValuationIncrease	0	usd
CY2023Q3	bfin	Foreclosed Assets Valuation Allowance Valuation Increase ForeclosedAssetsValuationAllowanceValuationIncrease	48000	usd
	bfin	Foreclosed Assets Valuation Allowance Valuation Increase ForeclosedAssetsValuationAllowanceValuationIncrease	0	usd
	bfin	Foreclosed Assets Valuation Allowance Valuation Increase ForeclosedAssetsValuationAllowanceValuationIncrease	48000	usd
CY2024Q3	bfin	Foreclosed Assets Valuation Allowance Amounts Applied ForeclosedAssetsValuationAllowanceAmountsApplied	-0	usd
CY2023Q3	bfin	Foreclosed Assets Valuation Allowance Amounts Applied ForeclosedAssetsValuationAllowanceAmountsApplied	-0	usd
	bfin	Foreclosed Assets Valuation Allowance Amounts Applied ForeclosedAssetsValuationAllowanceAmountsApplied	111000	usd
	bfin	Foreclosed Assets Valuation Allowance Amounts Applied ForeclosedAssetsValuationAllowanceAmountsApplied	-0	usd
CY2024Q3	bfin	Foreclosed Assets Valuation Allowance ForeclosedAssetsValuationAllowance	0	usd
CY2023Q3	bfin	Foreclosed Assets Valuation Allowance ForeclosedAssetsValuationAllowance	48000	usd
CY2024Q3	bfin	Foreclosed Assets Valuation Allowance ForeclosedAssetsValuationAllowance	0	usd
CY2023Q3	bfin	Foreclosed Assets Valuation Allowance ForeclosedAssetsValuationAllowance	48000	usd
CY2023Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	0	usd
CY2024Q3	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.075	pure
CY2024Q3	us-gaap	Line Of Credit LineOfCredit	0	usd
CY2023Q4	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.08	pure
CY2023Q4	us-gaap	Line Of Credit LineOfCredit	0	usd
CY2023Q1	bfin	Valuation Reserve On Premises Heldforsale ValuationReserveOnPremisesHeldforsale	553000	usd
CY2023Q2	bfin	Valuation Reserve On Premises Heldforsale ValuationReserveOnPremisesHeldforsale	32000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	264905000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	153203000	usd
CY2024Q3	bfin	Other Foreclosed Assets Valuation Allowance OtherForeclosedAssetsValuationAllowance	0	usd
CY2023Q4	bfin	Other Real Estate Owned Gross OtherRealEstateOwnedGross	472000	usd
CY2023Q4	bfin	Other Real Estate With Valuation Adjustments OtherRealEstateWithValuationAdjustments	67000	usd
CY2023Q4	us-gaap	Other Real Estate OtherRealEstate	405000	usd
CY2023Q4	bfin	Foreclosed Assets Gross ForeclosedAssetsGross	431000	usd
CY2023Q4	bfin	Other Foreclosed Assets Valuation Allowance OtherForeclosedAssetsValuationAllowance	44000	usd
CY2023Q4	bfin	Foreclosed Assets Net Of Valuation Reserve ForeclosedAssetsNetOfValuationReserve	387000	usd
CY2024Q3	bfin	Foreclosed Assets Valuation Adjustments With Valuation Reserve ForeclosedAssetsValuationAdjustmentsWithValuationReserve	0	usd
CY2023Q3	bfin	Foreclosed Assets Valuation Adjustments With Valuation Reserve ForeclosedAssetsValuationAdjustmentsWithValuationReserve	48000	usd
CY2024Q3	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	97000	usd
CY2023Q3	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	98000	usd
	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	350000	usd
	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	368000	usd
CY2024Q3	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	0	usd
CY2023Q3	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	0	usd
	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	0	usd
	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	-454000	usd
CY2024Q3	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-20000	usd
CY2023Q3	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	usd
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-104000	usd
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	9000	usd
CY2024Q3	bfin	Valuation Reserve On Premises Heldforsale ValuationReserveOnPremisesHeldforsale	-0	usd
CY2023Q3	bfin	Valuation Reserve On Premises Heldforsale ValuationReserveOnPremisesHeldforsale	-0	usd
	bfin	Valuation Reserve On Premises Heldforsale ValuationReserveOnPremisesHeldforsale	-0	usd
	bfin	Valuation Reserve On Premises Heldforsale ValuationReserveOnPremisesHeldforsale	585000	usd
CY2024Q3	bfin	Bank Owned Life Insurance Income Loss BankOwnedLifeInsuranceIncomeLoss	-14000	usd
CY2023Q3	bfin	Bank Owned Life Insurance Income Loss BankOwnedLifeInsuranceIncomeLoss	-88000	usd
	bfin	Bank Owned Life Insurance Income Loss BankOwnedLifeInsuranceIncomeLoss	-192000	usd
	bfin	Bank Owned Life Insurance Income Loss BankOwnedLifeInsuranceIncomeLoss	-259000	usd
CY2024Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2023Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	107000	usd
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2024Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	99000	usd
CY2023Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	104000	usd
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	296000	usd
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	298000	usd
CY2024Q3	us-gaap	Noninterest Income NoninterestIncome	1482000	usd
CY2023Q3	us-gaap	Noninterest Income NoninterestIncome	1240000	usd
	us-gaap	Noninterest Income NoninterestIncome	4219000	usd
	us-gaap	Noninterest Income NoninterestIncome	2792000	usd

Files In Submission

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0001437749-24-033339-index.html	Edgar Link	pending
0001437749-24-033339.txt	Edgar Link	pending
0001437749-24-033339-xbrl.zip	Edgar Link	pending
bfin-20240930.xsd	Edgar Link	pending
bfin20240930_10q.htm	Edgar Link	pending
ex_709463.htm	Edgar Link	pending
ex_709464.htm	Edgar Link	pending
ex_709465.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
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bfin-20240930_def.xml	Edgar Link	unprocessable
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bfin20240930_10q_htm.xml	Edgar Link	completed
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R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
bfin-20240930_cal.xml	Edgar Link	unprocessable

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$BFIN
BankFinancial CORP Stock $bfin

2024 Q4 Form 10-Q Financial Statement

#000143774924033339 Filed on November 05, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BFIN BankFinancial CORP Stock $bfin

2024 Q4 Form 10-Q Financial Statement

#000143774924033339 Filed on November 05, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BFIN
BankFinancial CORP Stock $bfin