$BFST
Business First Bancshares Inc Stock $bfst

$bfst Overview Financials Valuation SEC Filings Company Website

2021 Form 10-K Financial Statement

#000143774922004801 Filed on March 01, 2022

Income Statement

Concept	2021	2020 Q4	2020
Revenue	$170.4M		$149.8M
YoY Change	13.81%		44.74%
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	$4.160M	$1.010M	$3.160M
YoY Change	31.65%	172.97%	98.74%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$16.55M		$22.11M
YoY Change	-25.13%		-4.99%
% of Operating Profit
Other Income/Expense, Net	$11.40M		$10.76M
YoY Change	5.91%		82.03%
Pretax Income	$64.56M	$17.40M	$36.78M
YoY Change	75.52%	132.31%	23.21%
Income Tax	$12.42M	$3.560M	$6.788M
% Of Pretax Income	19.24%	20.46%	18.45%
Net Earnings	$52.14M	$13.83M	$29.99M
YoY Change	73.82%	140.1%	26.17%
Net Earnings / Revenue	30.59%		20.03%
Basic Earnings Per Share	$2.54		$1.65
Diluted Earnings Per Share	$2.53	$666.8K	$1.64
COMMON SHARES
Basic Shares Outstanding	20.50M	20.67M	18.17M
Diluted Shares Outstanding	20.63M		18.24M

Balance Sheet

Concept	2021	2020 Q4	2020
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents		$149.1M
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	$58.20M	$58.59M	$58.60M
YoY Change	-0.68%	100.11%	100.0%
Goodwill		$53.90M
YoY Change		11.13%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$8.800M	$5.900M	$5.900M
YoY Change	49.15%	180.95%	180.95%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$4.726B	$4.160B	$4.160B
YoY Change	13.6%	82.97%	82.97%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.400M	$2.500M	$2.500M
YoY Change	-44.0%	66.67%	66.67%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$19.10M	$26.80M	$26.80M
YoY Change	-28.73%	-60.59%	-60.59%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$1.400M	$2.500M	$2.500M
YoY Change	-44.0%	66.67%	-82.99%
LONG-TERM LIABILITIES
Long-Term Debt	$86.40M	$36.00M	$36.00M
YoY Change	140.0%	44.0%	44.0%
Other Long-Term Liabilities	$26.80M	$25.20M	$25.20M
YoY Change	6.35%	31.25%	320.0%
Total Long-Term Liabilities	$113.2M	$61.20M	$61.20M
YoY Change	84.97%	38.46%	97.42%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.400M	$2.500M	$2.500M
Total Long-Term Liabilities	$113.2M	$61.20M	$61.20M
Total Liabilities	$4.293B	$3.750B	$3.750B
YoY Change	14.47%	88.58%	88.59%
SHAREHOLDERS EQUITY
Retained Earnings		$79.17M
YoY Change		39.64%
Common Stock		$320.2M
YoY Change		41.8%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$433.4M	$410.0M	$410.0M
YoY Change
Total Liabilities & Shareholders Equity	$4.726B	$4.160B	$4.160B
YoY Change	13.6%	82.97%	82.97%

Cashflow Statement

Concept	2021	2020 Q4	2020
OPERATING ACTIVITIES
Net Income	$52.14M	$13.83M	$29.99M
YoY Change	73.82%	140.1%	26.17%
Depreciation, Depletion And Amortization	$4.160M	$1.010M	$3.160M
YoY Change	31.65%	172.97%	98.74%
Cash From Operating Activities	$56.44M	$14.20M	$29.34M
YoY Change	92.38%	386.3%	20.15%
INVESTING ACTIVITIES
Capital Expenditures	$3.971M	-$240.0K	$2.970M
YoY Change	33.7%	-87.56%	-24.98%
Acquisitions
YoY Change
Other Investing Activities	-$671.4M	-$162.1M	-$472.3M
YoY Change	42.14%	565.79%	150.8%
Cash From Investing Activities	-$675.4M	-$162.4M	-$475.3M
YoY Change	42.09%	518.08%	147.18%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$7.359M		$2.438M
YoY Change	201.85%		40.92%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$538.2M	193.4M	$505.7M
YoY Change	6.41%	291.74%	213.78%
NET CHANGE
Cash From Operating Activities	$56.44M	14.20M	$29.34M
Cash From Investing Activities	-$675.4M	-162.4M	-$475.3M
Cash From Financing Activities	$538.2M	193.4M	$505.7M
Net Change In Cash	-$80.76M	45.23M	$59.76M
YoY Change	-235.13%	73.83%	-991.81%
FREE CASH FLOW
Cash From Operating Activities	$56.44M	$14.20M	$29.34M
Capital Expenditures	$3.971M	-$240.0K	$2.970M
Free Cash Flow	$52.47M	$14.44M	$26.37M
YoY Change	98.99%	197.73%	28.89%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	20621437
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CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.40
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.46
CY2021Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	0	USD
CY2021Q4	us-gaap	Trading Securities TradingSecurities	0	USD
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CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	20400349
CY2021	dei	Auditor Firm AuditorFirmId	57
CY2021Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	29112000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	22024000	USD
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2021Q4	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue	0
CY2020Q4	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue	0
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.00
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.00
CY2021Q4	us-gaap	Servicing Asset ServicingAsset	1400000	USD
CY2021	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	3	pure
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CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0	USD
CY2021Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	USD
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CY2021Q4	us-gaap	Interest Receivable InterestReceivable	19597000	USD
CY2020Q4	us-gaap	Interest Receivable InterestReceivable	23895000	USD
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CY2020Q4	bfst	Shortterm Borrowings Excluding Securities Sold Under Agreements To Repurchase ShorttermBorrowingsExcludingSecuritiesSoldUnderAgreementsToRepurchase	5020000	USD
CY2021Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	82022000	USD
CY2020Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	43145000	USD
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CY2020Q4	us-gaap	Subordinated Debt SubordinatedDebt	25000000	USD
CY2021Q4	bfst	Trust Preferred Securities TrustPreferredSecurities	5000000	USD
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CY2021	bfst	Interest And Dividend Income Taxable Securities Operating InterestAndDividendIncomeTaxableSecuritiesOperating	9246000	USD
CY2020	bfst	Interest And Dividend Income Taxable Securities Operating InterestAndDividendIncomeTaxableSecuritiesOperating	5938000	USD
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CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-378000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-135000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-106000	USD
CY2021	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	-3138000	USD
CY2020	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	2131000	USD
CY2019	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	1616000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-11805000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	8015000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	6082000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	40331000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	38009000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	29854000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	260058000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	23772000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	6082000	USD
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	5054000	USD
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1699000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	1301000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation Forfeited StockIssuedDuringPeriodValueShareBasedCompensationForfeited	208000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	2553000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	285097000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	29994000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	8015000	USD
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	7520000	USD
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	102044000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	2453000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation Forfeited StockIssuedDuringPeriodValueShareBasedCompensationForfeited	4321000	USD
CY2020	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	5799000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	409963000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	52136000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-11805000	USD
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	9436000	USD
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	3564000	USD
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	2861000	USD
CY2021	bfst	Stock Surrendered Of Options Exercised StockSurrenderedOfOptionsExercised	2992000	USD
CY2021	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	10923000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	433368000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	52136000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	29994000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	23772000	USD
CY2021	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	8047000	USD
CY2020	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	11435000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2606000	USD
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	4163000	USD
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	3164000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	1588000	USD
CY2021	bfst	Business Acquisition Amortization Accretion Fair Market Value Adjustments BusinessAcquisitionAmortizationAccretionFairMarketValueAdjustments	-7122000	USD
CY2020	bfst	Business Acquisition Amortization Accretion Fair Market Value Adjustments BusinessAcquisitionAmortizationAccretionFairMarketValueAdjustments	-7283000	USD
CY2019	bfst	Business Acquisition Amortization Accretion Fair Market Value Adjustments BusinessAcquisitionAmortizationAccretionFairMarketValueAdjustments	-2646000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	2861000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	2453000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	1093000	USD
CY2021	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-7021000	USD
CY2020	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-5136000	USD
CY2019	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1688000	USD
CY2021	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	378000	USD
CY2020	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	135000	USD
CY2019	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	106000	USD
CY2021	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	9179000	USD
CY2020	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	-0	USD
CY2019	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	-0	USD
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2399000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2658000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1684000	USD
CY2021	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-1404000	USD
CY2020	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	30000	USD
CY2019	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-546000	USD
CY2021	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	1396000	USD
CY2020	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	940000	USD
CY2019	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	686000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	586000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-58000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	336000	USD
CY2021	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	492000	USD
CY2020	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-0	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	581000	USD
CY2021	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-4298000	USD
CY2020	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	10648000	USD
CY2019	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-198000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	3500000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	2655000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	318000	USD
CY2021	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-1145000	USD
CY2020	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-1694000	USD
CY2019	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	159000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	1538000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	3258000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-1547000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	56443000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	29339000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	24418000	USD
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	528059000	USD
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	233566000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	27223000	USD
CY2021	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	29945000	USD
CY2020	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	66779000	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	25984000	USD
CY2021	bfst	Proceeds From Repayments Of Investment Securities Available For Sale ProceedsFromRepaymentsOfInvestmentSecuritiesAvailableForSale	96408000	USD
CY2020	bfst	Proceeds From Repayments Of Investment Securities Available For Sale ProceedsFromRepaymentsOfInvestmentSecuritiesAvailableForSale	73890000	USD
CY2019	bfst	Proceeds From Repayments Of Investment Securities Available For Sale ProceedsFromRepaymentsOfInvestmentSecuritiesAvailableForSale	38678000	USD
CY2021	bfst	Cash Acquired From Paid For Acquisition CashAcquiredFromPaidForAcquisition	-7256000	USD
CY2020	bfst	Cash Acquired From Paid For Acquisition CashAcquiredFromPaidForAcquisition	106000000	USD
CY2019	bfst	Cash Acquired From Paid For Acquisition CashAcquiredFromPaidForAcquisition	0	USD
CY2021	bfst	Payments To Sell Branch Net PaymentsToSellBranchNet	13727000	USD
CY2020	bfst	Payments To Sell Branch Net PaymentsToSellBranchNet	-0	USD
CY2019	bfst	Payments To Sell Branch Net PaymentsToSellBranchNet	17448000	USD
CY2021	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	4438000	USD
CY2020	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	681000	USD
CY2019	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	3031000	USD
CY2021	bfst	Redemption Of Other Equity Securities RedemptionOfOtherEquitySecurities	2575000	USD
CY2020	bfst	Redemption Of Other Equity Securities RedemptionOfOtherEquitySecurities	8577000	USD
CY2019	bfst	Redemption Of Other Equity Securities RedemptionOfOtherEquitySecurities	1432000	USD
CY2021	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	15928000	USD
CY2020	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	-0	USD
CY2019	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	-0	USD
CY2021	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1974000	USD
CY2020	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2019	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2021	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	243607000	USD
CY2020	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	0	USD
CY2019	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	0	USD
CY2021	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	431236000	USD
CY2020	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	384962000	USD
CY2019	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	189361000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3971000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2970000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3959000	USD
CY2021	bfst	Loss On Disposal Of Property Plant And Equipment LossOnDisposalOfPropertyPlantAndEquipment	4000	USD
CY2020	bfst	Loss On Disposal Of Property Plant And Equipment LossOnDisposalOfPropertyPlantAndEquipment	576000	USD
CY2019	bfst	Loss On Disposal Of Property Plant And Equipment LossOnDisposalOfPropertyPlantAndEquipment	774000	USD
CY2021	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	7640000	USD
CY2020	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	3842000	USD
CY2019	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	1400000	USD
CY2021	us-gaap	Increase Decrease In Federal Funds Sold IncreaseDecreaseInFederalFundsSold	-52892000	USD
CY2020	us-gaap	Increase Decrease In Federal Funds Sold IncreaseDecreaseInFederalFundsSold	-112780000	USD
CY2019	us-gaap	Increase Decrease In Federal Funds Sold IncreaseDecreaseInFederalFundsSold	-19536000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-675354000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-475295000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-192290000	USD
CY2021	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	480124000	USD
CY2020	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	658388000	USD
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	73319000	USD
CY2021	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-2704000	USD
CY2020	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-48767000	USD
CY2019	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	55760000	USD
CY2021	bfst	Net Repayments Advances Of Federal Home Loan Bank Borrowings NetRepaymentsAdvancesOfFederalHomeLoanBankBorrowings	39022000	USD
CY2020	bfst	Net Repayments Advances Of Federal Home Loan Bank Borrowings NetRepaymentsAdvancesOfFederalHomeLoanBankBorrowings	-89198000	USD
CY2019	bfst	Net Repayments Advances Of Federal Home Loan Bank Borrowings NetRepaymentsAdvancesOfFederalHomeLoanBankBorrowings	38000000	USD
CY2021	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	-5000000	USD
CY2020	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	1369000	USD
CY2019	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	0	USD
CY2021	us-gaap	Proceeds From Repayments Of Secured Debt ProceedsFromRepaymentsOfSecuredDebt	-6000000	USD
CY2020	us-gaap	Proceeds From Repayments Of Secured Debt ProceedsFromRepaymentsOfSecuredDebt	-1797000	USD
CY2019	us-gaap	Proceeds From Repayments Of Secured Debt ProceedsFromRepaymentsOfSecuredDebt	0	USD
CY2021	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	52500000	USD
CY2020	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	0	USD
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	3564000	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	3361000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	823000	USD
CY2021	bfst	Payments For Surrendered Shares Of Options Exercised PaymentsForSurrenderedSharesOfOptionsExercised	2992000	USD
CY2020	bfst	Payments For Surrendered Shares Of Options Exercised PaymentsForSurrenderedSharesOfOptionsExercised	4321000	USD
CY2019	bfst	Payments For Surrendered Shares Of Options Exercised PaymentsForSurrenderedSharesOfOptionsExercised	-0	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	10923000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	5799000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2553000	USD
CY2021	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	0	USD
CY2020	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	0	USD
CY2019	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	876000	USD
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	9436000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	7520000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	5054000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	538155000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	505716000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	161171000	USD
CY2021	us-gaap	Notes Issued1 NotesIssued1	3927000	USD
CY2020	us-gaap	Notes Issued1 NotesIssued1	0	USD
CY2019	us-gaap	Notes Issued1 NotesIssued1	0	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-80756000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	59760000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-6701000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	149131000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	89371000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	96072000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	68375000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	149131000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	89371000	USD
CY2021	bfst	Interest On Deposits InterestOnDeposits	13249000	USD
CY2020	bfst	Interest On Deposits InterestOnDeposits	16589000	USD
CY2019	bfst	Interest On Deposits InterestOnDeposits	19616000	USD
CY2021	bfst	Interest Paid On Borrowings Net InterestPaidOnBorrowingsNet	4450000	USD
CY2020	bfst	Interest Paid On Borrowings Net InterestPaidOnBorrowingsNet	4554000	USD
CY2019	bfst	Interest Paid On Borrowings Net InterestPaidOnBorrowingsNet	3494000	USD
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	15711000	USD
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	5470000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	5600000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-14607000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	9918000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	7698000	USD
CY2021	bfst	Oci Equity Securities Availableforsale Unrealized Holding Gain Loss Before Adjustment And Tax OciEquitySecuritiesAvailableforsaleUnrealizedHoldingGainLossBeforeAdjustmentAndTax	-336000	USD
CY2020	bfst	Oci Equity Securities Availableforsale Unrealized Holding Gain Loss Before Adjustment And Tax OciEquitySecuritiesAvailableforsaleUnrealizedHoldingGainLossBeforeAdjustmentAndTax	228000	USD
CY2019	bfst	Oci Equity Securities Availableforsale Unrealized Holding Gain Loss Before Adjustment And Tax OciEquitySecuritiesAvailableforsaleUnrealizedHoldingGainLossBeforeAdjustmentAndTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	3138000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-2131000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-1616000	USD
CY2021	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	1420000	USD
CY2020	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	1506000	USD
CY2019	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	4102000	USD
CY2021	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	0	USD
CY2020	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	5900000	USD
CY2019	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	0	USD
CY2021	bfst	Noncash Or Part Noncash Acquisition Identifiable Assets Acquired NoncashOrPartNoncashAcquisitionIdentifiableAssetsAcquired	1343000	USD
CY2020	bfst	Noncash Or Part Noncash Acquisition Identifiable Assets Acquired NoncashOrPartNoncashAcquisitionIdentifiableAssetsAcquired	1330940000	USD
CY2019	bfst	Noncash Or Part Noncash Acquisition Identifiable Assets Acquired NoncashOrPartNoncashAcquisitionIdentifiableAssetsAcquired	0	USD
CY2021	us-gaap	Noncash Or Part Noncash Acquisition Intangible Assets Acquired1 NoncashOrPartNoncashAcquisitionIntangibleAssetsAcquired1	4300000	USD
CY2020	us-gaap	Noncash Or Part Noncash Acquisition Intangible Assets Acquired1 NoncashOrPartNoncashAcquisitionIntangibleAssetsAcquired1	4211000	USD
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Intangible Assets Acquired1 NoncashOrPartNoncashAcquisitionIntangibleAssetsAcquired1	0	USD
CY2021	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	6000	USD
CY2020	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	1241834000	USD
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	0	USD
CY2021	bfst	Noncash Or Part Noncash Acquisition Assets Acquired Liabilities Assumed NoncashOrPartNoncashAcquisitionAssetsAcquiredLiabilitiesAssumed	5637000	USD
CY2020	bfst	Noncash Or Part Noncash Acquisition Assets Acquired Liabilities Assumed NoncashOrPartNoncashAcquisitionAssetsAcquiredLiabilitiesAssumed	93317000	USD
CY2019	bfst	Noncash Or Part Noncash Acquisition Assets Acquired Liabilities Assumed NoncashOrPartNoncashAcquisitionAssetsAcquiredLiabilitiesAssumed	0	USD
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:justify;margin:0pt 0pt 0pt 15pt;"><span style="text-decoration: underline; ">Estimates</span></p> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:justify;margin:0pt 0pt 0pt 15pt;"> </p> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:justify;margin:0pt 0pt 0pt 15pt;">Preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying disclosures. These estimates are based on management’s best knowledge of current events and actions the Company <em style="font: inherit;"> may </em>undertake in the future. Critical accounting estimates that are particularly susceptible to significant change for the Company include the determination of the acquired loans and allowance for loan losses and purchase accounting adjustments (other than loans). Other estimates include goodwill, fair value of financial instruments, investment securities and the assessment of income taxes. Management does <em style="font: inherit;">not</em> anticipate any material changes to estimates in the near term. Factors that <em style="font: inherit;"> may </em>cause sensitivity to the aforementioned estimates include but are <em style="font: inherit;">not</em> limited to: external market factors such as market interest rates and employment rates, changes to operating policies and procedures, economic conditions in the Company’s markets, and changes in applicable banking regulations. Actual results <em style="font: inherit;"> may </em>ultimately differ from estimates.</p> <p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;"> </p> <p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;"/> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:justify;margin:0pt 0pt 0pt 15pt;">The Bank’s loans are generally secured by specific items of collateral including real property, business assets, and consumer assets. Although the Bank has a diversified loan portfolio, a substantial portion of its debtors’ ability to honor their contracts is dependent on local economic conditions in the Bank’s market area.</p> <p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;"> </p> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:justify;margin:0pt 0pt 0pt 15pt;">While management uses available information to recognize losses on loans, further reductions in the carrying amounts of loans <em style="font: inherit;"> may </em>be necessary based on changes in local economic conditions. In addition, regulatory agencies, as an integral part of their examination process, periodically review the estimated losses on loans. Such agencies <em style="font: inherit;"> may </em>require the Bank to recognize additional losses based on their judgments about information available to them at the time of their examination.</p> <p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;"> </p> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:justify;margin:0pt 0pt 0pt 15pt;">Because of these factors, it is reasonably possible that the estimated losses on loans <em style="font: inherit;"> may </em>change materially in the near term. However, the amount of the change that is reasonably possible cannot be estimated.</p> <p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;"> </p>
CY2020Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	0	USD
CY2020Q4	us-gaap	Trading Securities TradingSecurities	0	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	23772000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20502249
CY2021	us-gaap	Advertising Expense AdvertisingExpense	2700000	USD
CY2020	us-gaap	Advertising Expense AdvertisingExpense	1600000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	1500000	USD
CY2021	us-gaap	Reclassifications Reclassifications	<p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:justify;margin:0pt;"><b>Note <em style="font: inherit;">2</em> </b>–<b> Reclassifications </b>–</p> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:justify;margin:0pt;"> </p> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:justify;margin:0pt 0pt 0pt 15pt;">Certain reclassifications <em style="font: inherit;"> may </em>have been made to the prior years’ financial statements in order to conform to the classifications adopted for reporting in <em style="font: inherit;">2021.</em> These reclassifications have <em style="font: inherit;">no</em> material effect on previously reported shareholders’ equity or net income.</p> <p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;"> </p> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><b/></p>
CY2021	us-gaap	Net Income Loss NetIncomeLoss	52136000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	29994000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	18169599
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	13310577
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	132032
CY2020	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	73846
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	360200
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20634281
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	18243445
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	13670777
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.54
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.65
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.79
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.53
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.64
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.74
CY2020Q4	bfst	Reserve Requirements With Federal Reserve ReserveRequirementsWithFederalReserve	0	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1022443000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	8160000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	9542000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1021061000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	627380000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	13583000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	358000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	640605000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	608279000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	8899000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	29146000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	643000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	637425000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	9542000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	68096000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	357000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	17000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	1000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	68113000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	358000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis	29850000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Fair Value AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	29934000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis	182221000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	182293000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	22024000	USD
CY2021	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	1636000	USD
CY2021	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	677000	USD
CY2021	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	8047000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	29112000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	694000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	28418000	USD
CY2021Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Allowance For Loan Losses CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses	0	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	3189608000	USD
CY2021Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	13821000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis	416781000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	418027000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis	393591000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue	390807000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	1022443000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	1021061000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	373400000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	301700000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	593000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	293000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	112000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	215000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	158000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	6000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	3189608000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	2991355000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	29112000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	22024000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	3160496000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	2969331000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	7700000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	10200000	USD
CY2021Q4	bfst	Loans And Leases Receivable Reclassified From Overdraft LoansAndLeasesReceivableReclassifiedFromOverdraft	2400000	USD
CY2020Q4	bfst	Loans And Leases Receivable Reclassified From Overdraft LoansAndLeasesReceivableReclassifiedFromOverdraft	623000	USD
CY2021Q4	bfst	Loans Receivable Unpaid Principal Balance LoansReceivableUnpaidPrincipalBalance	461800000	USD
CY2020Q4	bfst	Loans Receivable Unpaid Principal Balance LoansReceivableUnpaidPrincipalBalance	430000000.0	USD
CY2020Q4	us-gaap	Servicing Asset ServicingAsset	1400000	USD
CY2021Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	3124567000	USD
CY2021Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	51220000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	12124000	USD
CY2020	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	1963000	USD
CY2020	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	428000	USD
CY2020	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	11435000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	22024000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	1014000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	21010000	USD
CY2020Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Allowance For Loan Losses CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses	0	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	2991355000	USD
CY2020Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	13557000	USD
CY2020Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	2913538000	USD
CY2020Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet	64260000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	3189608000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	2991355000	USD
CY2021Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	222000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	1500000	USD
CY2021Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	12900000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	9100000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	3189608000	USD
CY2021Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	222000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	2991355000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	1523000	USD
CY2021Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	12868000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	9063000	USD
CY2021	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	334000	USD
CY2020	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	335000	USD
CY2021Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	1952000	USD
CY2021Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	2170000	USD
CY2021Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	694000	USD
CY2021	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	2284000	USD
CY2021Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	11869000	USD
CY2021Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	13978000	USD
CY2021	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	11038000	USD
CY2021Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	13821000	USD
CY2021Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	16148000	USD
CY2021Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	694000	USD
CY2021	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	13322000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	3593000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	3738000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	1014000	USD
CY2020	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	2855000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	9964000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	11314000	USD
CY2020	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	11037000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	13557000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	15052000	USD
CY2020Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	1014000	USD
CY2020	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	13892000	USD
CY2020Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period Contractually Required Payments Receivable At Acquisition CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodContractuallyRequiredPaymentsReceivableAtAcquisition	133621000	USD
CY2020Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Allowance For Loan Losses CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLosses	49828000	USD
CY2020Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period Cash Flows Expected To Be Collected At Acquisition CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodCashFlowsExpectedToBeCollectedAtAcquisition	83793000	USD
CY2020Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	-9202000	USD
CY2020Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period At Acquisition At Fair Value CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue	74591000	USD
CY2020Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	15853000	USD
CY2021	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference	5742000	USD
CY2021	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	1770000	USD
CY2021	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Period Increase Decrease CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldPeriodIncreaseDecrease	834000	USD
CY2021Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	20659000	USD
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CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	6730000	USD
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CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	10000
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	15.00
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	10000
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	15.00
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	-0
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	0
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	113547
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	17.06
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	385300
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	14.67
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	725300
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	12.55
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	113547
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	17.06
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	385300
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	14.67
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	724300
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	12.55
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y3M18D
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P1Y7M6D
CY2017Q4	bfst	Share Based Compensation Arrangement By Share Based Payment Award Options Amended Number Of Shares ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAmendedNumberOfShares	105250
CY2017Q4	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	63000	USD
CY2016Q4	bfst	Share Based Compensation Arrangement By Share Based Payment Award Options Amended Number Of Shares ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAmendedNumberOfShares	330000
CY2021	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.04	pure
CY2021	bfst	Employee Compensation And Benefits EmployeeCompensationAndBenefits	1800000	USD
CY2020	bfst	Employee Compensation And Benefits EmployeeCompensationAndBenefits	1400000	USD
CY2019	bfst	Employee Compensation And Benefits EmployeeCompensationAndBenefits	967000	USD
CY2021Q4	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	2600000	USD
CY2020Q4	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	2700000	USD
CY2021	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	408000	USD
CY2020	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	285000	USD
CY2019	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	256000	USD
CY2021	bfst	Fee Income From Debit Card And Atm FeeIncomeFromDebitCardAndAtm	6199000	USD
CY2020	bfst	Fee Income From Debit Card And Atm FeeIncomeFromDebitCardAndAtm	4320000	USD
CY2019	bfst	Fee Income From Debit Card And Atm FeeIncomeFromDebitCardAndAtm	1847000	USD
CY2021	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1976000	USD
CY2020	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	940000	USD
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	687000	USD
CY2021	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	5015000	USD
CY2020	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	970000	USD
CY2019	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	73000	USD
CY2021	bfst	Passthrough Income From Sbic Partnership PassthroughIncomeFromSbicPartnership	2615000	USD
CY2020	bfst	Passthrough Income From Sbic Partnership PassthroughIncomeFromSbicPartnership	2538000	USD
CY2019	bfst	Passthrough Income From Sbic Partnership PassthroughIncomeFromSbicPartnership	1553000	USD
CY2021	us-gaap	Other Income OtherIncome	2669000	USD
CY2020	us-gaap	Other Income OtherIncome	2706000	USD
CY2019	us-gaap	Other Income OtherIncome	2177000	USD
CY2021	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	18474000	USD
CY2020	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	11474000	USD
CY2019	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	6337000	USD
CY2019	us-gaap	Business Development BusinessDevelopment	1535000	USD
CY2021	us-gaap	Communication Communication	1976000	USD
CY2021	us-gaap	Business Development BusinessDevelopment	2712000	USD
CY2020	us-gaap	Business Development BusinessDevelopment	1605000	USD
CY2020	us-gaap	Communication Communication	1969000	USD
CY2019	us-gaap	Communication Communication	1063000	USD
CY2021	bfst	Ad Valorem Shares Tax AdValoremSharesTax	2499000	USD
CY2020	bfst	Ad Valorem Shares Tax AdValoremSharesTax	2348000	USD
CY2019	bfst	Ad Valorem Shares Tax AdValoremSharesTax	1423000	USD
CY2021	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	8137000	USD
CY2020	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	5506000	USD
CY2019	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	2049000	USD
CY2021	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	790000	USD
CY2020	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	464000	USD
CY2019	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	570000	USD
CY2021	us-gaap	General Insurance Expense GeneralInsuranceExpense	1091000	USD
CY2020	us-gaap	General Insurance Expense GeneralInsuranceExpense	718000	USD
CY2019	us-gaap	General Insurance Expense GeneralInsuranceExpense	347000	USD
CY2021	us-gaap	Professional Fees ProfessionalFees	2679000	USD
CY2020	us-gaap	Professional Fees ProfessionalFees	2118000	USD
CY2019	us-gaap	Professional Fees ProfessionalFees	1319000	USD
CY2021	us-gaap	Supplies Expense SuppliesExpense	1131000	USD
CY2020	us-gaap	Supplies Expense SuppliesExpense	884000	USD
CY2019	us-gaap	Supplies Expense SuppliesExpense	670000	USD
CY2021	bfst	Bank Regulatory Expenses BankRegulatoryExpenses	2440000	USD
CY2020	bfst	Bank Regulatory Expenses BankRegulatoryExpenses	1785000	USD
CY2019	bfst	Bank Regulatory Expenses BankRegulatoryExpenses	389000	USD
CY2021	us-gaap	Taxes And Licenses TaxesAndLicenses	120000	USD
CY2020	us-gaap	Taxes And Licenses TaxesAndLicenses	84000	USD
CY2019	us-gaap	Taxes And Licenses TaxesAndLicenses	88000	USD
CY2021	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	515000	USD
CY2020	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	3978000	USD
CY2019	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	330000	USD
CY2021	us-gaap	Other Expenses OtherExpenses	11396000	USD
CY2020	us-gaap	Other Expenses OtherExpenses	10760000	USD
CY2019	us-gaap	Other Expenses OtherExpenses	5911000	USD
CY2021	us-gaap	Other Noninterest Expense OtherNoninterestExpense	35486000	USD
CY2020	us-gaap	Other Noninterest Expense OtherNoninterestExpense	32219000	USD
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	15694000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	2413000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2109000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1990000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1849000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	4748000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	15696000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1392000	USD
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	2800000	USD
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	2600000	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	2900000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y2M12D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y9M18D
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0264	pure
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0289	pure
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	2587000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	27800000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	33200000	USD
CY2021Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	43800000	USD
CY2020Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	40200000	USD
CY2021	us-gaap	Loss Contingency Disclosures LossContingencyDisclosures	<p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;margin:0pt;"><b>Note <em style="font: inherit;">25</em> </b>–<b> Litigation and Contingencies </b>–</p> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;margin:0pt;"> </p> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:justify;margin:0pt 0pt 0pt 15pt;">In the normal course of business, the Bank is involved in various legal proceedings. In the opinion of management and counsel, the disposition or ultimate resolution of such proceedings would <em style="font: inherit;">not</em> have a material adverse effect on the Bank’s financial statements.</p>

Files In Submission

Name	View Source	Status
0001437749-22-004801-index-headers.html	Edgar Link	pending
0001437749-22-004801-index.html	Edgar Link	pending
0001437749-22-004801.txt	Edgar Link	pending
0001437749-22-004801-xbrl.zip	Edgar Link	pending
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FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
image01.jpg	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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2021 Form 10-K Financial Statement

#000143774922004801 Filed on March 01, 2022

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$BFST Business First Bancshares Inc Stock $bfst

2021 Form 10-K Financial Statement

#000143774922004801 Filed on March 01, 2022

Income Statement

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Facts In Submission

Files In Submission

$BFST
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