$ALRS
ALERUS FINANCIAL CORP Stock $alrs

$alrs Overview Financials Valuation SEC Filings Company Website

2024 Q4 Form 10-Q Financial Statement

#000143774924032818 Filed on October 31, 2024

Income Statement

Concept	2024 Q4	2024 Q3	2023 Q3
Revenue		$52.21M	$42.04M
YoY Change		24.2%	30.25%
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		$700.0K	$2.200M
YoY Change		-68.18%	3.92%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense			$21.64M
YoY Change			446.68%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income		$6.797M	$11.54M
YoY Change		-41.11%	-8.1%
Income Tax		$1.590M	$2.381M
% Of Pretax Income		23.39%	20.63%
Net Earnings		$5.207M	$9.161M
YoY Change		-43.16%	-4.76%
Net Earnings / Revenue		9.97%	21.79%
Basic Earnings Per Share		$0.26	$0.46
Diluted Earnings Per Share		$0.26	$0.45
COMMON SHARES
Basic Shares Outstanding	25.34M	19.78M	19.91M
Diluted Shares Outstanding		20.08M	20.10M

Balance Sheet

Concept	2024 Q3	2023 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$65.98M	$64.72M
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	$18.79M	$23.20M
YoY Change	-19.01%	12.91%
Goodwill	$46.78M	$46.78M
YoY Change	0.0%	1.57%
Intangibles	$13.19M	$18.48M
YoY Change	-28.65%	-22.28%
Long-Term Investments
YoY Change
Other Assets	$33.05M	$48.00M
YoY Change	-31.14%	4.6%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$4.085B	$3.869B
YoY Change	5.57%	4.82%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$70.86M	$73.20M
YoY Change	-3.19%	1.76%
Deferred Revenue
YoY Change
Short-Term Debt	$244.7M	$515.5M
YoY Change	-52.53%	103.08%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$315.6M	$388.7M
YoY Change	-18.82%	440.33%
LONG-TERM LIABILITIES
Long-Term Debt	$59.04M	$58.90M
YoY Change	0.24%	0.11%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$59.04M	$58.90M
YoY Change	0.24%	0.11%
TOTAL LIABILITIES
Total Short-Term Liabilities	$315.6M	$388.7M
Total Long-Term Liabilities	$59.04M	$58.90M
Total Liabilities	$3.698B	$3.520B
YoY Change	5.07%	5.18%
SHAREHOLDERS EQUITY
Retained Earnings	$278.9M	$291.2M
YoY Change	-4.22%	6.6%
Common Stock	$19.79M	$19.85M
YoY Change	-0.29%	-0.7%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$386.5M	$349.4M
YoY Change
Total Liabilities & Shareholders Equity	$4.085B	$3.869B
YoY Change	5.57%	4.82%

Cashflow Statement

Concept	2024 Q3	2023 Q3
OPERATING ACTIVITIES
Net Income	$5.207M	$9.161M
YoY Change	-43.16%	-4.76%
Depreciation, Depletion And Amortization	$700.0K	$2.200M
YoY Change	-68.18%	3.92%
Cash From Operating Activities	$18.94M	$18.60M
YoY Change	1.82%	-60.54%
INVESTING ACTIVITIES
Capital Expenditures	$2.765M	$600.0K
YoY Change	360.83%	-198.36%
Acquisitions
YoY Change
Other Investing Activities	-$98.98M	-$56.40M
YoY Change	75.49%	118.77%
Cash From Investing Activities	-$101.7M	-$57.00M
YoY Change	78.49%	115.99%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-289.4M	37.70M
YoY Change	-867.54%	-1140.86%
NET CHANGE
Cash From Operating Activities	18.94M	18.60M
Cash From Investing Activities	-101.7M	-57.00M
Cash From Financing Activities	-289.4M	37.70M
Net Change In Cash	-372.2M	-700.0K
YoY Change	53066.57%	-104.09%
FREE CASH FLOW
Cash From Operating Activities	$18.94M	$18.60M
Capital Expenditures	$2.765M	$600.0K
Free Cash Flow	$16.17M	$18.00M
YoY Change	-10.14%	-62.3%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Central Index Key EntityCentralIndexKey	0000903419
	dei	Entity Registrant Name EntityRegistrantName	ALERUS FINANCIAL CORP
	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
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	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	001-39036
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	45-0375407
	dei	Entity Address Address Line1 EntityAddressAddressLine1	401 Demers Avenue
	dei	Entity Address City Or Town EntityAddressCityOrTown	Grand Forks
	dei	Entity Address State Or Province EntityAddressStateOrProvince	ND
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	58201
	dei	City Area Code CityAreaCode	701
	dei	Local Phone Number LocalPhoneNumber	795‑3200
	dei	Security12b Title Security12bTitle	Common Stock, par value $1.00 per share
	dei	Trading Symbol TradingSymbol	ALRS
	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	Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	true
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	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	66287000	usd
CY2024Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	1661000	usd
CY2023Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	6150000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	550000	usd
CY2024Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	20881000	usd
CY2023Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	20395000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	62611000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	65737000	usd
CY2024Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	2474000	usd
CY2023Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1693000	usd
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	5891000	usd
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	5475000	usd
CY2024Q3	us-gaap	Noninterest Income NoninterestIncome	28363000	usd
CY2023Q3	us-gaap	Noninterest Income NoninterestIncome	28407000	usd
	us-gaap	Noninterest Income NoninterestIncome	81057000	usd
	us-gaap	Noninterest Income NoninterestIncome	79439000	usd
CY2024Q3	us-gaap	Compensation Expense Excluding Cost Of Good And Service Sold CompensationExpenseExcludingCostOfGoodAndServiceSold	21058000	usd
CY2023Q3	us-gaap	Compensation Expense Excluding Cost Of Good And Service Sold CompensationExpenseExcludingCostOfGoodAndServiceSold	19071000	usd
	us-gaap	Compensation Expense Excluding Cost Of Good And Service Sold CompensationExpenseExcludingCostOfGoodAndServiceSold	60655000	usd
	us-gaap	Compensation Expense Excluding Cost Of Good And Service Sold CompensationExpenseExcludingCostOfGoodAndServiceSold	57076000	usd
CY2024Q3	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	5400000	usd
CY2023Q3	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	4895000	usd
	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	16722000	usd
	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	15472000	usd
CY2024Q3	us-gaap	Equipment Expense EquipmentExpense	2082000	usd
CY2023Q3	us-gaap	Equipment Expense EquipmentExpense	1883000	usd
	us-gaap	Equipment Expense EquipmentExpense	5803000	usd
	us-gaap	Equipment Expense EquipmentExpense	5619000	usd
CY2024Q3	alrs	Business Services Software And Technology Expense BusinessServicesSoftwareAndTechnologyExpense	4879000	usd
CY2023Q3	alrs	Business Services Software And Technology Expense BusinessServicesSoftwareAndTechnologyExpense	4774000	usd
	alrs	Business Services Software And Technology Expense BusinessServicesSoftwareAndTechnologyExpense	14823000	usd
	alrs	Business Services Software And Technology Expense BusinessServicesSoftwareAndTechnologyExpense	15367000	usd
CY2024Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1324000	usd
CY2023Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1324000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3972000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3972000	usd
CY2024Q3	us-gaap	Professional Fees ProfessionalFees	4267000	usd
CY2023Q3	us-gaap	Professional Fees ProfessionalFees	1716000	usd
	us-gaap	Professional Fees ProfessionalFees	8633000	usd
	us-gaap	Professional Fees ProfessionalFees	4397000	usd
CY2024Q3	us-gaap	Business Development BusinessDevelopment	764000	usd
CY2023Q3	us-gaap	Business Development BusinessDevelopment	750000	usd
	us-gaap	Business Development BusinessDevelopment	2200000	usd
	us-gaap	Business Development BusinessDevelopment	2139000	usd
CY2024Q3	us-gaap	Supplies And Postage Expense SuppliesAndPostageExpense	422000	usd
CY2023Q3	us-gaap	Supplies And Postage Expense SuppliesAndPostageExpense	410000	usd
	us-gaap	Supplies And Postage Expense SuppliesAndPostageExpense	1321000	usd
	us-gaap	Supplies And Postage Expense SuppliesAndPostageExpense	1275000	usd
CY2024Q3	us-gaap	Travel And Entertainment Expense TravelAndEntertainmentExpense	330000	usd
CY2023Q3	us-gaap	Travel And Entertainment Expense TravelAndEntertainmentExpense	322000	usd
	us-gaap	Travel And Entertainment Expense TravelAndEntertainmentExpense	954000	usd
	us-gaap	Travel And Entertainment Expense TravelAndEntertainmentExpense	876000	usd
CY2024Q3	alrs	Mortgage And Lending Expenses MortgageAndLendingExpenses	684000	usd
CY2023Q3	alrs	Mortgage And Lending Expenses MortgageAndLendingExpenses	689000	usd
	alrs	Mortgage And Lending Expenses MortgageAndLendingExpenses	1592000	usd
	alrs	Mortgage And Lending Expenses MortgageAndLendingExpenses	1401000	usd
CY2024Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1237000	usd
CY2023Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1426000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	3543000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	3909000	usd
CY2024Q3	us-gaap	Noninterest Expense NoninterestExpense	42447000	usd
CY2023Q3	us-gaap	Noninterest Expense NoninterestExpense	37260000	usd
	us-gaap	Noninterest Expense NoninterestExpense	120218000	usd
	us-gaap	Noninterest Expense NoninterestExpense	111503000	usd
CY2024Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	6797000	usd
CY2023Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	11542000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	23450000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	33673000	usd
CY2024Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1590000	usd
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2381000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5604000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7222000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	5207000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	9161000	usd
	us-gaap	Net Income Loss NetIncomeLoss	17846000	usd
	us-gaap	Net Income Loss NetIncomeLoss	26451000	usd
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.26
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.46
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.9
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.31
CY2024Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.26
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.45
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.89
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.3
CY2024Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.2
CY2023Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.19
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.59
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.56
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19788000
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19872000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19768000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19977000
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20075000
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20095000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20037000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20193000
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	5207000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	9161000	usd
	us-gaap	Net Income Loss NetIncomeLoss	17846000	usd
	us-gaap	Net Income Loss NetIncomeLoss	26451000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	19431000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	-19155000	usd
	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	14692000	usd
	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	-24033000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-869000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	1011000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-160000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	1011000	usd
CY2024Q3	alrs	Other Comprehensive Income Loss Other Derivatives Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossOtherDerivativesGainLossAfterReclassificationBeforeTax	-3068000	usd
CY2023Q3	alrs	Other Comprehensive Income Loss Other Derivatives Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossOtherDerivativesGainLossAfterReclassificationBeforeTax	1133000	usd
	alrs	Other Comprehensive Income Loss Other Derivatives Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossOtherDerivativesGainLossAfterReclassificationBeforeTax	-872000	usd
	alrs	Other Comprehensive Income Loss Other Derivatives Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossOtherDerivativesGainLossAfterReclassificationBeforeTax	3206000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	15494000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-17011000	usd
	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	13660000	usd
	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-19816000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	3889000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-4270000	usd
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	3429000	usd
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-4974000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	11605000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-12741000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	10231000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-14842000	usd
CY2024Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	16812000	usd
CY2023Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-3580000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	28077000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	11609000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	357685000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	9161000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-12741000	usd
CY2023Q3	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	1242000	usd
CY2023Q3	us-gaap	Dividends Common Stock DividendsCommonStock	3838000	usd
CY2023Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	377000	usd
CY2023Q3	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	349402000	usd
CY2024Q2	us-gaap	Stockholders Equity StockholdersEquity	373226000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	5207000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	11605000	usd
CY2024Q3	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	76000	usd
CY2024Q3	us-gaap	Dividends Common Stock DividendsCommonStock	3964000	usd
CY2024Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	488000	usd
CY2024Q3	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	386486000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	352420000	usd
	us-gaap	Net Income Loss NetIncomeLoss	26451000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-14842000	usd
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	4556000	usd
	us-gaap	Dividends Common Stock DividendsCommonStock	11263000	usd
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1192000	usd
	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	349402000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	369127000	usd
	us-gaap	Net Income Loss NetIncomeLoss	17846000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	10231000	usd
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	232000	usd
	us-gaap	Dividends Common Stock DividendsCommonStock	11688000	usd
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1202000	usd
	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	386486000	usd
	us-gaap	Net Income Loss NetIncomeLoss	17846000	usd
	us-gaap	Net Income Loss NetIncomeLoss	26451000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1888000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	857000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	6150000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	550000	usd
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	6456000	usd
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	6378000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1301000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1652000	usd
	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	60000	usd
	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	372000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	1202000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	1192000	usd
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	233656000	usd
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	239004000	usd
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	238113000	usd
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	238028000	usd
	alrs	Increase Decrease In Value Of Bank Owned Life Insurance IncreaseDecreaseInValueOfBankOwnedLifeInsurance	622000	usd
	alrs	Increase Decrease In Value Of Bank Owned Life Insurance IncreaseDecreaseInValueOfBankOwnedLifeInsurance	653000	usd
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	476000	usd
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-0	usd
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-421000	usd
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	322000	usd
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	6545000	usd
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	5922000	usd
	alrs	Gain Loss On Sale Of Foreclosed Assets GainLossOnSaleOfForeclosedAssets	1000	usd
	alrs	Gain Loss On Sale Of Foreclosed Assets GainLossOnSaleOfForeclosedAssets	27000	usd
	alrs	Realized Loss Gain On Bank Owned Life Insurance Mortality RealizedLossGainOnBankOwnedLifeInsuranceMortality	-0	usd
	alrs	Realized Loss Gain On Bank Owned Life Insurance Mortality RealizedLossGainOnBankOwnedLifeInsuranceMortality	1196000	usd
	alrs	Gain Loss On Servicing Rights GainLossOnServicingRights	149000	usd
	alrs	Gain Loss On Servicing Rights GainLossOnServicingRights	28000	usd
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	769000	usd
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	2692000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-127000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	3967000	usd
	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-8129000	usd
	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	3879000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	19441000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	24804000	usd
	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	8684000	usd
	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	0	usd
	us-gaap	Payments To Acquire Trading Securities Heldforinvestment PaymentsToAcquireTradingSecuritiesHeldforinvestment	11220000	usd
	us-gaap	Payments To Acquire Trading Securities Heldforinvestment PaymentsToAcquireTradingSecuritiesHeldforinvestment	-0	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	35011000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	52624000	usd
	alrs	Proceeds From Sale Or Calls Of Heldtomaturity Securities ProceedsFromSaleOrCallsOfHeldtomaturitySecurities	611000	usd
	alrs	Proceeds From Sale Or Calls Of Heldtomaturity Securities ProceedsFromSaleOrCallsOfHeldtomaturitySecurities	242000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	16180000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	17188000	usd
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	275760000	usd
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	162322000	usd
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-2809000	usd
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	5953000	usd
	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	1935000	usd
	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	-0	usd
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	usd
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	2828000	usd
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	2799000	usd
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	7331000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1474000	usd
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	37000	usd
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	51000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-230115000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-96816000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	227939000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-43300000	usd
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-69470000	usd
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	137390000	usd
	us-gaap	Payments Of Dividends PaymentsOfDividends	11481000	usd
	us-gaap	Payments Of Dividends PaymentsOfDividends	11040000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	232000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	4556000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	146756000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	78494000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-63918000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	6482000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	129893000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	58242000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	65975000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	64724000	usd
	us-gaap	Interest Paid Net InterestPaidNet	84700000	usd
	us-gaap	Interest Paid Net InterestPaidNet	50969000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	260000	usd
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	6637000	usd
	alrs	Cash Dividends Declared Not Paid CashDividendsDeclaredNotPaid	3963000	usd
	alrs	Cash Dividends Declared Not Paid CashDividendsDeclaredNotPaid	3838000	usd
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	5000	usd
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	3000	usd
	alrs	Property Plant And Equipment Transferred To Other Assets PropertyPlantAndEquipmentTransferredToOtherAssets	2086000	usd
	alrs	Property Plant And Equipment Transferred To Other Assets PropertyPlantAndEquipmentTransferredToOtherAssets	0	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5244000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1938000	usd
	alrs	Real Estate Owned And Other Assets Liabilities Change In Fair Value Hedge RealEstateOwnedAndOtherAssetsLiabilitiesChangeInFairValueHedge	98000	usd
	alrs	Real Estate Owned And Other Assets Liabilities Change In Fair Value Hedge RealEstateOwnedAndOtherAssetsLiabilitiesChangeInFairValueHedge	716000	usd
	us-gaap	Basis Of Accounting BasisOfAccounting	<p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;margin:0pt;"><b>NOTE</b> <b><em style="font: inherit;">1</em> Basis of Presentation</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;margin:0pt;text-indent:36pt;">The accompanying unaudited consolidated interim financial statements and notes thereto of the Company have been prepared in accordance with instructions for Form <em style="font: inherit;">10</em>-Q and, therefore, do <em style="font: inherit;">not</em> include all disclosures required by accounting principles generally accepted in the United States of America, or GAAP, for complete presentation of financial statements. In the opinion of management, the consolidated financial statements contain all adjustments (consisting only of normal recurring accruals) necessary to present fairly the consolidated balance sheets of Alerus Financial Corporation, or the Company, as of <em style="font: inherit;"> September 30, 2024</em> and <em style="font: inherit;"> December 31, 2023</em>, the consolidated statements of income for the <em style="font: inherit;">three</em> and <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2024 </em>and <em style="font: inherit;">2023</em>, consolidated statements of comprehensive income (loss) for the <em style="font: inherit;">three</em> and <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2024 </em>and <em style="font: inherit;">2023</em>, the consolidated statements of changes in stockholders’ equity for the <em style="font: inherit;">three</em> and <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2024 </em>and <em style="font: inherit;">2023</em>, and the consolidated statements of cash flows for the <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2024 </em>and <em style="font: inherit;">2023</em>.</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;text-indent:36pt;">The accompanying unaudited consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. The Company’s principal operating subsidiary is Alerus Financial, National Association, or the Bank. Certain items previously reported have been reclassified to conform to the current period’s reporting format. Such reclassifications did <em style="font: inherit;">not</em> affect net income or stockholders’ equity. The results of operations for the interim periods are <em style="font: inherit;">not</em> necessarily indicative of the results for the full year or any other period. The Company has also evaluated all subsequent events for potential recognition and disclosure through the date of the filing of this Quarterly Report on Form <em style="font: inherit;">10</em>-Q. These interim unaudited financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto as of and for the year ended <em style="font: inherit;"> December 31, 2023</em>, included in the Company’s Annual Report on Form <em style="font: inherit;">10</em>-K filed with the SEC on <em style="font: inherit;"> March 8, 2024.</em></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;"><b>Emerging Growth Company</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;margin:0pt;text-indent:36pt;">The Company qualifies as an “emerging growth company” under the Jumpstart Our Business Startups Act of <em style="font: inherit;">2012,</em> or the JOBS Act, and <em style="font: inherit;"> may </em>take advantage of certain exemptions from various reporting requirements that are applicable to public companies that are <em style="font: inherit;">not</em> emerging growth companies, including, but <em style="font: inherit;">not</em> limited to, <em style="font: inherit;">not</em> being required to comply with the auditor attestation requirements of Section <em style="font: inherit;">404</em> of the Sarbanes-Oxley Act of <em style="font: inherit;">2002,</em> or the Sarbanes-Oxley Act, reduced disclosure obligations regarding executive compensation in periodic reports and proxy statements, and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and stockholder approval of any golden parachute payments <em style="font: inherit;">not</em> previously approved. In addition, even if the Company complies with the greater obligations of public companies that are <em style="font: inherit;">not</em> emerging growth companies, the Company <em style="font: inherit;"> may </em>avail itself of the reduced requirements applicable to emerging growth companies from time to time in the future, so long as the Company is an emerging growth company. The Company will continue to be an emerging growth company until the earliest to occur of: (<em style="font: inherit;">1</em>) the end of the fiscal year following the <em style="font: inherit;">fifth</em> anniversary of the date of the <em style="font: inherit;">first</em> sale of common equity securities under the Company’s Registration Statement on Form S-<em style="font: inherit;">1,</em> which was declared effective by the U.S. Securities and Exchange Commission, or SEC, on <em style="font: inherit;"> September 12, 2019; (</em><em style="font: inherit;">2</em>) the last day of the fiscal year in which the Company has <em style="font: inherit;">$1.235</em> billion or more in annual revenues; (<em style="font: inherit;">3</em>) the date on which the Company is deemed to be a “large accelerated filer” under the Securities Exchange Act of <em style="font: inherit;">1934,</em> as amended, or the Exchange Act; or (<em style="font: inherit;">4</em>) the date on which the Company has, during the previous <em style="font: inherit;">three</em>-year period, issued publicly or privately, more than <em style="font: inherit;">$1.0</em> billion in non-convertible debt securities. Management cannot predict if investors will find the Company’s common stock less attractive because it will rely on the exemptions available to emerging growth companies. If some investors find the Company’s common stock less attractive as a result, there <em style="font: inherit;"> may </em>be a less active trading market for its common stock and the Company’s stock price <em style="font: inherit;"> may </em>be more volatile. The last year the Company qualifies as an emerging growth company is <em style="font: inherit;">2024.</em></p> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;margin:0pt;text-indent:36pt;">Section <em style="font: inherit;">107</em> of the JOBS Act provides that an emerging growth company can take advantage of the extended transition period provided in Section <em style="font: inherit;">7</em>(a)(<em style="font: inherit;">2</em>)(B) of the Securities Act of <em style="font: inherit;">1933</em> for complying with new or revised accounting standards. As an emerging growth company, the Company can delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. The Company elected to take advantage of the benefits of this extended transition period.</p>
CY2024Q3	us-gaap	Trading Securities Debt TradingSecuritiesDebt	2700000	usd
CY2023Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	0	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	4000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	83123000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	466003000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	usd
CY2024Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	32188000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	137000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	249862000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale And Held To Maturity Amortized Cost Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityAmortizedCostBeforeAllowanceForCreditLoss	831172000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale And Held To Maturity Cumulative Unrecognized Gain DebtSecuritiesAvailableForSaleAndHeldToMaturityCumulativeUnrecognizedGain	4000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale And Held To Maturity Cumulative Unrecognized Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityCumulativeUnrecognizedLoss	115311000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale And Held To Maturity Allowance For Credit Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityAllowanceForCreditLoss	137000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale And Held To Maturity Fair Value DebtSecuritiesAvailableForSaleAndHeldToMaturityFairValue	715865000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	5000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	98023000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	486736000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	41111000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	213000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	258617000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Amortized Cost Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityAmortizedCostBeforeAllowanceForCreditLoss	884482000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Cumulative Unrecognized Gain DebtSecuritiesAvailableForSaleAndHeldToMaturityCumulativeUnrecognizedGain	5000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Cumulative Unrecognized Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityCumulativeUnrecognizedLoss	139134000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Allowance For Credit Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityAllowanceForCreditLoss	213000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Fair Value DebtSecuritiesAvailableForSaleAndHeldToMaturityFairValue	745353000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	137000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	213000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Allowance For Credit Loss Writeoff DebtSecuritiesHeldToMaturityExcludingAccruedInterestAllowanceForCreditLossWriteoff	0	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	1600000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityAccruedInterestAfterAllowanceForCreditLoss	900000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	1500000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityAccruedInterestAfterAllowanceForCreditLoss	1400000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	125	pure
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	2000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	370000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	83121000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	465191000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	83123000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	465561000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	129	pure
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	3000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	532000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	98020000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	485527000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	98023000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	486059000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date Year One DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne	8282000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	8203000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	0	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	0	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year One Through Five DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughFive	56385000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	53122000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	1838000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	1778000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year5 Through10 DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYear5Through10	48042000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	43323000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	57992000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	49460000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year10 DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYear10	10008000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	8945000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	377000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	377000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDate	122717000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue	113593000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	60207000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	51615000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss	282050000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	249862000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	549122000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	466003000	usd
CY2024Q3	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	4623000	usd
CY2023Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	4623000	usd
CY2024Q3	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	13757000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	16566000	usd
CY2024Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss Fee And Loan In Process FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess	3032343000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss Fee And Loan In Process FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess	2759583000	usd
CY2024Q3	us-gaap	Financing Receivable Unamortized Loan Fee Cost FinancingReceivableUnamortizedLoanFeeCost	601000	usd
CY2023Q4	us-gaap	Financing Receivable Unamortized Loan Fee Cost FinancingReceivableUnamortizedLoanFeeCost	248000	usd
CY2024Q3	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	13400000	usd
CY2023Q4	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	12200000	usd
CY2024Q2	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	38332000	usd
CY2024Q3	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	1126000	usd
CY2024Q3	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	505000	usd
CY2024Q3	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	189000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	39142000	usd
CY2024Q3	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	549000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityCreditLossExpenseReversal	-14000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	35843000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	6195000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	3444000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	548000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	39142000	usd
	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	31000	usd
	us-gaap	Debt Securities Held To Maturity Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityCreditLossExpenseReversal	-76000	usd
CY2023Q2	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	35696000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	0	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	151000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	745000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	36290000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	31146000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	460000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	516000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	1343000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	36290000	usd
	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	44000	usd
	us-gaap	Debt Securities Held To Maturity Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityCreditLossExpenseReversal	46000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	39100000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Period Increase Decrease FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossPeriodIncreaseDecrease	3300000	usd
CY2023	alrs	Percentage Of Increase In Financing Receivable Allowance For Credit Loss Excluding Accrued Interest PercentageOfIncreaseInFinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	0.092	pure
CY2024Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	428011000	usd
CY2024Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	559360000	usd
CY2024Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	658012000	usd
CY2024Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	407847000	usd
CY2024Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	300980000	usd
CY2024Q3	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	405919000	usd
CY2024Q3	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	272214000	usd
CY2024Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	3032343000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff	0	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff	197000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff	32000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff	150000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff	2672000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff	393000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Writeoff FinancingReceivableExcludingAccruedInterestRevolvingWriteoff	0	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	3444000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	596067000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	667909000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	452797000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	341964000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	191674000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	273541000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	235631000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	2759583000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff	43000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff	2000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff	58000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff	42000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff	253000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff	215000	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Writeoff FinancingReceivableExcludingAccruedInterestRevolvingWriteoff	0	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	613000	usd
CY2024Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	48026000	usd
CY2024Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	3032343000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	8596000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	2759583000	usd
CY2024Q3	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	18511000	usd
CY2024Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	48026000	usd
CY2024Q3	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	usd
CY2023Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	991000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	8596000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	139000	usd
CY2024Q3	alrs	Loans And Leases Receivables Impaired Troubled Debt Interest Income LoansAndLeasesReceivablesImpairedTroubledDebtInterestIncome	1900000	usd
CY2023Q3	alrs	Loans And Leases Receivables Impaired Troubled Debt Interest Income LoansAndLeasesReceivablesImpairedTroubledDebtInterestIncome	186000	usd
CY2024Q3	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	13400000	usd
CY2023Q4	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	12200000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	64047000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	69457000	usd
CY2024Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	45257000	usd
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	51517000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	18790000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	17940000	usd
CY2024Q3	us-gaap	Depreciation Depreciation	700000	usd
CY2023Q3	us-gaap	Depreciation Depreciation	600000	usd
	us-gaap	Depreciation Depreciation	2100000	usd
	us-gaap	Depreciation Depreciation	1900000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	46783000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	46783000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	49015000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	-35829000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	13186000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	49015000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	-31857000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	17158000	usd
CY2024Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1300000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4000000	usd
	alrs	Servicing Asset Other ServicingAssetOther	181800000	usd
CY2023	alrs	Servicing Asset Other ServicingAssetOther	190000000	usd
CY2024Q2	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	1963000	usd
CY2023Q2	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	2351000	usd
CY2023Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	2052000	usd
CY2022Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	2643000	usd
CY2024Q3	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	225000	usd
CY2023Q3	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	210000	usd
	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	358000	usd
	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	236000	usd
CY2024Q3	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	105000	usd
CY2023Q3	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	140000	usd
	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	327000	usd
	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	458000	usd
CY2024Q3	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	2083000	usd
CY2023Q3	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	2421000	usd
CY2024Q3	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	2083000	usd
CY2023Q3	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	2421000	usd
CY2024Q3	us-gaap	Servicing Asset At Amortized Value Valuation Allowance ServicingAssetAtAmortizedValueValuationAllowance	-209000	usd
CY2023Q3	us-gaap	Servicing Asset At Amortized Value Valuation Allowance ServicingAssetAtAmortizedValueValuationAllowance	-207000	usd
	us-gaap	Servicing Asset At Amortized Value Valuation Allowance ServicingAssetAtAmortizedValueValuationAllowance	-209000	usd
	us-gaap	Servicing Asset At Amortized Value Valuation Allowance ServicingAssetAtAmortizedValueValuationAllowance	-207000	usd
CY2024Q3	alrs	Servicing Asset At Amortized Cost Net Of Valuation Allowance ServicingAssetAtAmortizedCostNetOfValuationAllowance	1874000	usd
CY2023Q3	alrs	Servicing Asset At Amortized Cost Net Of Valuation Allowance ServicingAssetAtAmortizedCostNetOfValuationAllowance	2214000	usd
CY2024Q3	alrs	Servicing Asset At Amortized Cost Net Of Valuation Allowance ServicingAssetAtAmortizedCostNetOfValuationAllowance	1874000	usd
CY2023Q3	alrs	Servicing Asset At Amortized Cost Net Of Valuation Allowance ServicingAssetAtAmortizedCostNetOfValuationAllowance	2214000	usd
CY2024Q2	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	2082000	usd
CY2023Q2	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	2351000	usd
CY2023Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	2062000	usd
CY2022Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	2643000	usd
CY2024Q3	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	1874000	usd
CY2023Q3	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	2269000	usd
CY2024Q3	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	1874000	usd
CY2023Q3	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	2269000	usd
CY2024Q3	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	1874000	usd
CY2023Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	2062000	usd
	us-gaap	Assumption For Fair Value Of Assets Or Liabilities That Relate To Transferors Continuing Involvement Weighted Average Life1 AssumptionForFairValueOfAssetsOrLiabilitiesThatRelateToTransferorsContinuingInvolvementWeightedAverageLife1	P19Y1M6D
CY2023	us-gaap	Assumption For Fair Value Of Assets Or Liabilities That Relate To Transferors Continuing Involvement Weighted Average Life1 AssumptionForFairValueOfAssetsOrLiabilitiesThatRelateToTransferorsContinuingInvolvementWeightedAverageLife1	P18Y9M18D
	us-gaap	Assumption For Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Prepayment Speed AssumptionForFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesPrepaymentSpeed	0.101	pure
CY2023	us-gaap	Assumption For Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Prepayment Speed AssumptionForFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesPrepaymentSpeed	0.062	pure
	us-gaap	Assumption For Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Discount Rate AssumptionForFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesDiscountRate	0.105	pure
CY2023	us-gaap	Assumption For Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Discount Rate AssumptionForFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesDiscountRate	0.111	pure
CY2024Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	9268000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	5436000	usd
CY2024Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	9643000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	5751000	usd
CY2024Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P12Y1M6D
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y3M18D
CY2024Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0447	pure
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.039	pure
CY2024Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	500000	usd
CY2023Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	503000	usd
	us-gaap	Operating Lease Cost OperatingLeaseCost	1404000	usd
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	1438000	usd
CY2024Q3	us-gaap	Variable Lease Cost VariableLeaseCost	269000	usd
CY2023Q3	us-gaap	Variable Lease Cost VariableLeaseCost	219000	usd
	us-gaap	Variable Lease Cost VariableLeaseCost	741000	usd
CY2023	us-gaap	Variable Lease Cost VariableLeaseCost	918000	usd
CY2024Q3	us-gaap	Short Term Lease Cost ShortTermLeaseCost	54000	usd
CY2023Q3	us-gaap	Short Term Lease Cost ShortTermLeaseCost	46000	usd
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	158000	usd
CY2023	us-gaap	Short Term Lease Cost ShortTermLeaseCost	128000	usd
CY2024Q3	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	0	usd
CY2023Q3	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	0	usd
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	0	usd
CY2023	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	0	usd
CY2024Q3	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	0	usd
CY2023Q3	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	0	usd
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	0	usd
CY2023	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	0	usd
CY2024Q3	us-gaap	Sublease Income SubleaseIncome	47000	usd
CY2023Q3	us-gaap	Sublease Income SubleaseIncome	50000	usd
	us-gaap	Sublease Income SubleaseIncome	146000	usd
CY2023	us-gaap	Sublease Income SubleaseIncome	169000	usd
CY2024Q3	us-gaap	Lease Cost LeaseCost	776000	usd
CY2023Q3	us-gaap	Lease Cost LeaseCost	718000	usd
	us-gaap	Lease Cost LeaseCost	2157000	usd
CY2023	us-gaap	Lease Cost LeaseCost	2315000	usd
CY2024Q3	us-gaap	Operating Lease Payments OperatingLeasePayments	549000	usd
CY2023Q3	us-gaap	Operating Lease Payments OperatingLeasePayments	499000	usd
	us-gaap	Operating Lease Payments OperatingLeasePayments	1469000	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	1275000	usd
CY2024Q3	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5136000	usd
CY2023Q3	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1240000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5244000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1938000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Rolling Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths	1747000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Two LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo	1574000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Three LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree	1470000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Four LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour	970000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Five LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive	758000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Rolling Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive	8309000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	14828000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	5185000	usd
CY2024Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	9643000	usd
CY2024Q3	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	657547000	usd
CY2023Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	728082000	usd
CY2024Q3	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	1034694000	usd
CY2023Q4	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	840711000	usd
CY2024Q3	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	75675000	usd
CY2023Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	82485000	usd
CY2024Q3	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	1067187000	usd
CY2023Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	1032771000	usd
CY2024Q3	us-gaap	Time Deposits TimeDeposits	488447000	usd
CY2023Q4	us-gaap	Time Deposits TimeDeposits	411562000	usd
CY2024Q3	alrs	Interestbearing Deposit Liabilities Including Time Deposits InterestbearingDepositLiabilitiesIncludingTimeDeposits	2666003000	usd
CY2023Q4	alrs	Interestbearing Deposit Liabilities Including Time Deposits InterestbearingDepositLiabilitiesIncludingTimeDeposits	2367529000	usd
CY2024Q3	us-gaap	Deposits Deposits	3323550000	usd
CY2023Q4	us-gaap	Deposits Deposits	3095611000	usd
CY2024Q3	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	170900000	usd
CY2023Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	121800000	usd
CY2024Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	244700000	usd
CY2023Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	314170000	usd
CY2024Q3	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	60310000	usd
CY2024Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	59041000	usd
CY2023Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	60310000	usd
CY2023Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	58956000	usd
CY2024Q3	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	938466000	usd
CY2023Q4	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	952458000	usd
CY2024Q3	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1427000	usd
CY2024Q3	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
CY2023Q3	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	2424000	usd
CY2023Q3	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
CY2024Q3	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	-308000	usd
CY2024Q3	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.045	pure
CY2023Q3	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	-189000	usd
CY2023Q3	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.016	pure
CY2024Q3	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	332000	usd
CY2024Q3	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.049	pure
CY2023Q3	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	499000	usd
CY2023Q3	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.043	pure
CY2024Q3	alrs	Income Tax Reconciliation Nondeductible Expense And Other Reconciling Items IncomeTaxReconciliationNondeductibleExpenseAndOtherReconcilingItems	139000	usd
CY2024Q3	alrs	Income Tax Reconciliation Nondeductible Expense And Other Reconciling Items Percent IncomeTaxReconciliationNondeductibleExpenseAndOtherReconcilingItemsPercent	0.02	pure
CY2023Q3	alrs	Income Tax Reconciliation Nondeductible Expense And Other Reconciling Items IncomeTaxReconciliationNondeductibleExpenseAndOtherReconcilingItems	-353000	usd
CY2023Q3	alrs	Income Tax Reconciliation Nondeductible Expense And Other Reconciling Items Percent IncomeTaxReconciliationNondeductibleExpenseAndOtherReconcilingItemsPercent	-0.031	pure
CY2024Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1590000	usd
CY2024Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.234	pure
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2381000	usd
CY2023Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.206	pure
	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	4925000	usd
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	7071000	usd
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	-776000	usd
	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.033	pure
	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	-489000	usd
	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.015	pure
	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1143000	usd
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.049	pure
	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1445000	usd
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.043	pure
	alrs	Income Tax Reconciliation Nondeductible Expense And Other Reconciling Items IncomeTaxReconciliationNondeductibleExpenseAndOtherReconcilingItems	312000	usd
	alrs	Income Tax Reconciliation Nondeductible Expense And Other Reconciling Items Percent IncomeTaxReconciliationNondeductibleExpenseAndOtherReconcilingItemsPercent	0.013	pure
	alrs	Income Tax Reconciliation Nondeductible Expense And Other Reconciling Items IncomeTaxReconciliationNondeductibleExpenseAndOtherReconcilingItems	-805000	usd
	alrs	Income Tax Reconciliation Nondeductible Expense And Other Reconciling Items Percent IncomeTaxReconciliationNondeductibleExpenseAndOtherReconcilingItemsPercent	-0.024	pure
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5604000	usd
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.239	pure
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7222000	usd
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.214	pure
CY2024Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	22542000	usd
CY2024Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	1661000	usd
CY2024Q3	us-gaap	Noninterest Income NoninterestIncome	28363000	usd
CY2024Q3	us-gaap	Noninterest Expense NoninterestExpense	42447000	usd
CY2024Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	6797000	usd
CY2024Q3	us-gaap	Assets Assets	4084640000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	68761000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	6150000	usd
	us-gaap	Noninterest Income NoninterestIncome	81057000	usd
	us-gaap	Noninterest Expense NoninterestExpense	120218000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	23450000	usd
CY2024Q3	us-gaap	Assets Assets	4084640000	usd
CY2023Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	20395000	usd
CY2023Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	usd
CY2023Q3	us-gaap	Noninterest Income NoninterestIncome	28407000	usd
CY2023Q3	us-gaap	Noninterest Expense NoninterestExpense	37260000	usd
CY2023Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	11542000	usd
CY2023Q3	us-gaap	Assets Assets	3832978000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	66287000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	550000	usd
	us-gaap	Noninterest Income NoninterestIncome	79439000	usd
	us-gaap	Noninterest Expense NoninterestExpense	111503000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	33673000	usd
CY2023Q3	us-gaap	Assets Assets	3832978000	usd
CY2024Q3	alrs	Number Of Banking Offices In Minnesota Wisconsin And Iowa NumberOfBankingOfficesInMinnesotaWisconsinAndIowa	15	pure
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	5207000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	9161000	usd
	us-gaap	Net Income Loss NetIncomeLoss	17846000	usd
	us-gaap	Net Income Loss NetIncomeLoss	26451000	usd
CY2024Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	24000	usd
CY2023Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	67000	usd
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	102000	usd
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	186000	usd
CY2024Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	5183000	usd
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	9094000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	17744000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	26265000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19788000
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19872000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19768000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19977000
CY2024Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	287000
CY2023Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	223000
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	269000
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	216000
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20075000
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20095000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20037000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20193000
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.26
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.46
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.9
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.31
CY2024Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.26
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.45
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.89
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.3
CY2024Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0
CY2024Q3	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	800000	usd
CY2023Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	600000	usd
CY2024Q3	us-gaap	Derivative Liability Fair Value Of Collateral DerivativeLiabilityFairValueOfCollateral	1600000	usd
CY2023Q4	us-gaap	Derivative Liability Fair Value Of Collateral DerivativeLiabilityFairValueOfCollateral	600000	usd
CY2024Q3	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	800000	usd
CY2023Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	600000	usd
CY2024Q3	alrs	Derivative Termination Value DerivativeTerminationValue	1600000	usd
CY2023Q4	alrs	Derivative Termination Value DerivativeTerminationValue	600000	usd
CY2024Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	11740000	usd
CY2024Q3	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	0	usd
CY2024Q3	us-gaap	Derivative Asset After Offset Subject To Master Netting Arrangement DerivativeAssetAfterOffsetSubjectToMasterNettingArrangement	11740000	usd
CY2024Q3	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	6068000	usd
CY2024Q3	us-gaap	Derivative Asset Fair Value After Offset And Deduction Subject To Master Netting Arrangement DerivativeAssetFairValueAfterOffsetAndDeductionSubjectToMasterNettingArrangement	5672000	usd
CY2024Q3	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	13329000	usd
CY2024Q3	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	0	usd
CY2024Q3	us-gaap	Derivative Liability After Offset Subject To Master Netting Arrangement DerivativeLiabilityAfterOffsetSubjectToMasterNettingArrangement	13329000	usd
CY2024Q3	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	752000	usd
CY2024Q3	us-gaap	Derivative Liability Fair Value After Offset And Deduction Subject To Master Netting Arrangement DerivativeLiabilityFairValueAfterOffsetAndDeductionSubjectToMasterNettingArrangement	12577000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	8327000	usd
CY2023Q4	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	0	usd
CY2023Q4	us-gaap	Derivative Asset After Offset Subject To Master Netting Arrangement DerivativeAssetAfterOffsetSubjectToMasterNettingArrangement	8327000	usd
CY2023Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	1740000	usd
CY2023Q4	us-gaap	Derivative Asset Fair Value After Offset And Deduction Subject To Master Netting Arrangement DerivativeAssetFairValueAfterOffsetAndDeductionSubjectToMasterNettingArrangement	6587000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	9180000	usd
CY2023Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	0	usd
CY2023Q4	us-gaap	Derivative Liability After Offset Subject To Master Netting Arrangement DerivativeLiabilityAfterOffsetSubjectToMasterNettingArrangement	9180000	usd
CY2023Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	550000	usd
CY2023Q4	us-gaap	Derivative Liability Fair Value After Offset And Deduction Subject To Master Netting Arrangement DerivativeLiabilityFairValueAfterOffsetAndDeductionSubjectToMasterNettingArrangement	8630000	usd
CY2024Q3	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	379074000	usd
CY2024Q3	us-gaap	Common Equity Tier One Capital Ratio CommonEquityTierOneCapitalRatio	0.1073	pure
CY2024Q3	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	158974000	usd
CY2024Q3	us-gaap	Banking Regulation Common Equity Tier One Risk Based Capital Ratio Capital Adequacy Minimum BankingRegulationCommonEquityTierOneRiskBasedCapitalRatioCapitalAdequacyMinimum	0.045	pure
CY2024Q3	us-gaap	Common Equity Tier One Capital Required To Be Well Capitalized CommonEquityTierOneCapitalRequiredToBeWellCapitalized	229629000	usd
CY2024Q3	us-gaap	Banking Regulation Common Equity Tier One Risk Based Capital Ratio Well Capitalized Minimum BankingRegulationCommonEquityTierOneRiskBasedCapitalRatioWellCapitalizedMinimum	0.065	pure
CY2024Q3	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	379074000	usd
CY2024Q3	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1073	pure
CY2024Q3	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	211966000	usd
CY2024Q3	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.06	pure
CY2024Q3	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized TierOneRiskBasedCapitalRequiredToBeWellCapitalized	282621000	usd
CY2024Q3	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.08	pure
CY2024Q3	us-gaap	Capital Capital	423265000	usd
CY2024Q3	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1198	pure
CY2024Q3	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	282621000	usd
CY2024Q3	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.08	pure
CY2024Q3	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	353276000	usd
CY2024Q3	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.10	pure
CY2024Q3	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	379074000	usd
CY2024Q3	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.089	pure
CY2024Q3	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	170336000	usd
CY2024Q3	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.04	pure
CY2024Q3	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized TierOneLeverageCapitalRequiredToBeWellCapitalized	212920000	usd
CY2024Q3	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.05	pure
CY2023Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	367445000	usd
CY2023Q4	us-gaap	Common Equity Tier One Capital Ratio CommonEquityTierOneCapitalRatio	0.114	pure
CY2023Q4	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	145101000	usd
CY2023Q4	us-gaap	Banking Regulation Common Equity Tier One Risk Based Capital Ratio Capital Adequacy Minimum BankingRegulationCommonEquityTierOneRiskBasedCapitalRatioCapitalAdequacyMinimum	0.045	pure
CY2023Q4	us-gaap	Common Equity Tier One Capital Required To Be Well Capitalized CommonEquityTierOneCapitalRequiredToBeWellCapitalized	209590000	usd
CY2023Q4	us-gaap	Banking Regulation Common Equity Tier One Risk Based Capital Ratio Well Capitalized Minimum BankingRegulationCommonEquityTierOneRiskBasedCapitalRatioWellCapitalizedMinimum	0.065	pure
CY2023Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	367445000	usd
CY2023Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.114	pure
CY2023Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	193468000	usd
CY2023Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.06	pure
CY2023Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized TierOneRiskBasedCapitalRequiredToBeWellCapitalized	257957000	usd
CY2023Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.08	pure
CY2023Q4	us-gaap	Capital Capital	403501000	usd
CY2023Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1251	pure
CY2023Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	257957000	usd
CY2023Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.08	pure
CY2023Q4	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	322446000	usd
CY2023Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.10	pure
CY2023Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	367445000	usd
CY2023Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0992	pure
CY2023Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	148186000	usd
CY2023Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.04	pure
CY2023Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized TierOneLeverageCapitalRequiredToBeWellCapitalized	185232000	usd
CY2023Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.05	pure
CY2024Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	19497000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	4894000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	14603000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-19075000	usd
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$ALRS
ALERUS FINANCIAL CORP Stock $alrs

2024 Q4 Form 10-Q Financial Statement

#000143774924032818 Filed on October 31, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ALRS ALERUS FINANCIAL CORP Stock $alrs

2024 Q4 Form 10-Q Financial Statement

#000143774924032818 Filed on October 31, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ALRS
ALERUS FINANCIAL CORP Stock $alrs