$IBCP
INDEPENDENT BANK CORP /MI/ Stock $ibcp

$ibcp Overview Financials Valuation SEC Filings Company Website

2024 Q3 Form 10-Q Financial Statement

#000003931124000073 Filed on August 05, 2024

Income Statement

Concept	2024 Q3	2024 Q2
Revenue	$8.836M	$7.896M
YoY Change	-3.02%	-2.13%
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	$2.509M	$2.504M
YoY Change	-3.5%	-0.79%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense
YoY Change
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$17.29M	$23.17M
YoY Change	-20.14%	27.27%
Income Tax	$3.481M	$4.638M
% Of Pretax Income	20.13%	20.02%
Net Earnings	$13.81M	$18.53M
YoY Change	-21.28%	25.27%
Net Earnings / Revenue	156.29%	234.65%
Basic Earnings Per Share	$0.66	$0.89
Diluted Earnings Per Share	$0.65	$0.88
COMMON SHARES
Basic Shares Outstanding	20.90M shares	20.90M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2024 Q3	2024 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$121.6M	$214.3M
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	$35.25M	$35.04M
YoY Change	-0.27%	-3.09%
Goodwill	$28.30M	$28.30M
YoY Change	0.0%	0.0%
Intangibles	$1.617M	$1.746M
YoY Change	-24.47%	-23.35%
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$5.259B	$5.278B
YoY Change	1.14%	2.76%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$100.7M	$103.4M
YoY Change	-8.64%	-0.19%
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$100.7M	$103.4M
YoY Change	-8.64%	-0.19%
LONG-TERM LIABILITIES
Long-Term Debt	$79.35M	$79.31M
YoY Change	0.18%	0.18%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$79.35M	$79.31M
YoY Change	0.18%	0.18%
TOTAL LIABILITIES
Total Short-Term Liabilities	$100.7M	$103.4M
Total Long-Term Liabilities	$79.35M	$79.31M
Total Liabilities	$4.807B	$4.847B
YoY Change	-0.38%	1.82%
SHAREHOLDERS EQUITY
Retained Earnings	$192.4M	$183.6M
YoY Change	28.14%	33.6%
Common Stock	$318.2M	$317.7M
YoY Change	0.34%	-0.18%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$452.4M	$430.5M
YoY Change
Total Liabilities & Shareholders Equity	$5.259B	$5.278B
YoY Change	1.14%	2.76%

Cashflow Statement

Concept	2024 Q3	2024 Q2
OPERATING ACTIVITIES
Net Income	$13.81M	$18.53M
YoY Change	-21.28%	25.27%
Depreciation, Depletion And Amortization	$2.509M	$2.504M
YoY Change	-3.5%	-0.79%
Cash From Operating Activities	$17.20M	$8.747M
YoY Change	-32.54%	-10.64%
INVESTING ACTIVITIES
Capital Expenditures	$1.492M	$1.773M
YoY Change	6.57%	1.55%
Acquisitions
YoY Change
Other Investing Activities	-$65.98M	$18.63M
YoY Change	-14.53%	-123.1%
Cash From Investing Activities	-$67.48M	$16.85M
YoY Change	-14.15%	-120.46%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-42.52M	26.90M
YoY Change	-182.71%	-206.56%
NET CHANGE
Cash From Operating Activities	17.20M	8.747M
Cash From Investing Activities	-67.48M	16.85M
Cash From Financing Activities	-42.52M	26.90M
Net Change In Cash	-92.79M	52.50M
YoY Change	5358.12%	-153.67%
FREE CASH FLOW
Cash From Operating Activities	$17.20M	$8.747M
Capital Expenditures	$1.492M	$1.773M
Free Cash Flow	$15.71M	$6.974M
YoY Change	-34.81%	-13.29%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2024Q2	us-gaap	Notes Receivable Gross NotesReceivableGross	3851889000	usd
CY2023Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	3790901000	usd
CY2024Q2	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	56241000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	54658000	usd
CY2024Q2	us-gaap	Notes Receivable Net NotesReceivableNet	3795648000	usd
CY2023Q4	us-gaap	Notes Receivable Net NotesReceivableNet	3736243000	usd
CY2024Q2	us-gaap	Foreclosed Assets ForeclosedAssets	945000	usd
CY2023Q4	us-gaap	Foreclosed Assets ForeclosedAssets	569000	usd
CY2024Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	35041000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	35523000	usd
CY2024Q2	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	53821000	usd
CY2023Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	54341000	usd
CY2024Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	44406000	usd
CY2023Q4	us-gaap	Other Assets OtherAssets	132500000	usd
CY2024Q2	us-gaap	Assets Assets	5277500000	usd
CY2023Q4	us-gaap	Assets Assets	5263726000	usd
CY2024Q2	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1049625000	usd
CY2023Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1076093000	usd
CY2024Q2	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	1926065000	usd
CY2023Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	1905701000	usd
CY2024Q2	ibcp	Reciprocal Deposits ReciprocalDeposits	925828000	usd
CY2023Q4	ibcp	Reciprocal Deposits ReciprocalDeposits	832020000	usd
CY2024Q2	us-gaap	Interest Bearing Domestic Deposit Time Deposits InterestBearingDomesticDepositTimeDeposits	585561000	usd
CY2023Q4	us-gaap	Interest Bearing Domestic Deposit Time Deposits InterestBearingDomesticDepositTimeDeposits	524325000	usd
CY2024Q2	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	127249000	usd
CY2023Q4	us-gaap	Other Liabilities OtherLiabilities	107134000	usd
CY2024Q2	us-gaap	Liabilities Liabilities	4847041000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	4859277000	usd
CY2024Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2024Q2	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue	0
CY2023Q4	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue	0
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000	shares
CY2024Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000	shares
CY2024Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2024Q2	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2024Q2	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2023Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2024Q2	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2024Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2024Q2	us-gaap	Common Stock Value CommonStockValue	317676000	usd
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	317483000	usd
CY2024Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	183611000	usd
CY2024Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-70828000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	404449000	usd
CY2024Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5277500000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5263726000	usd
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	111829000	usd
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	91973000	usd
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	9964000	usd
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	11803000	usd
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	6791000	usd
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	6366000	usd
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	2880000	usd
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	1742000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	131464000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	111884000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	45686000	usd
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	4235000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	81543000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	76791000	usd
	ibcp	Provision For Loss Reimbursement On Sold Loans ProvisionForLossReimbursementOnSoldLoans	763000	usd
	ibcp	Provision For Loss Reimbursement On Sold Loans ProvisionForLossReimbursementOnSoldLoans	5477000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	80780000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	71314000	usd
	ibcp	Interchange Income InterchangeIncome	6552000	usd
	ibcp	Depositor Accounts Fees And Commissions DepositorAccountsFeesAndCommissions	5809000	usd
	ibcp	Depositor Accounts Fees And Commissions DepositorAccountsFeesAndCommissions	5991000	usd
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	2697000	usd
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	3376000	usd
	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Before Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossBeforeTax	-1675000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-222000	usd
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	3740000	usd
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	15771000	usd
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	785000	usd
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	3312000	usd
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	2955000	usd
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	12459000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-2692000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-413000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-615000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-152000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	-2077000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	-261000	usd
	us-gaap	Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease Adjustments Tax OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAdjustmentsTax	436000	usd
	us-gaap	Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease Adjustments Tax OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAdjustmentsTax	55000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-1641000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-206000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1314000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	12253000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	35833000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	40034000	usd
	us-gaap	Net Income Loss NetIncomeLoss	34519000	usd
	us-gaap	Net Income Loss NetIncomeLoss	27781000	usd
CY2024Q2	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	0	shares
CY2024Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	579000	usd
CY2024Q2	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	267	shares
CY2024Q2	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	2000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	801000	usd
CY2024Q2	us-gaap	Stockholders Equity StockholdersEquity	430459000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	367714000	usd
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	14790000	usd
CY2023Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.23
CY2023Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	4858000	usd
CY2023Q2	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	200000	shares
CY2023Q2	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	3270000	usd
CY2023Q2	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	7500	shares
CY2023Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	23000	usd
CY2023Q2	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	369	shares
CY2023Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	477000	usd
CY2023Q2	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	2478	shares
CY2023Q2	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	15000	usd
CY2023Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	301000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	375162000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	404449000	usd
	us-gaap	Net Income Loss NetIncomeLoss	34519000	usd
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.48
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	10016000	usd
CY2024Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1746000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	2004000	usd
CY2024Q2	us-gaap	Goodwill Goodwill	28300000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	28300000	usd
CY2024Q2	us-gaap	Other Assets OtherAssets	134145000	usd
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	20835633	shares
	ibcp	Interchange Income InterchangeIncome	6560000	usd
	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Before Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossBeforeTax	-1786000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-269000	usd
CY2024Q1	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	56313000	usd
CY2024Q2	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	19000	usd
CY2024Q2	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	799000	usd
CY2024Q2	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	890000	usd
CY2023Q1	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	50550000	usd
CY2023Q2	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	3317000	usd
CY2023Q2	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	747000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	54658000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	1890000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	1395000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	1702000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	52435000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	2485000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	1325000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	2281000	usd
CY2023Q2	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	53964000	usd
CY2024Q2	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual No Allowance FinancingReceivableExcludingAccruedInterestNonaccrualNoAllowance	1952000	usd
CY2024Q2	ibcp	Financing Receivable Nonaccrual With Allowance For Credit Loss FinancingReceivableNonaccrualWithAllowanceForCreditLoss	2533000	usd
CY2024Q2	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual FinancingReceivableExcludingAccruedInterestNonaccrual	4485000	usd
CY2024Q2	us-gaap	Financing Receivable Excluding Accrued Interest90 Days Or More Past Due Still Accruing FinancingReceivableExcludingAccruedInterest90DaysOrMorePastDueStillAccruing	0	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual No Allowance FinancingReceivableExcludingAccruedInterestNonaccrualNoAllowance	1119000	usd
CY2023Q4	ibcp	Financing Receivable Nonaccrual With Allowance For Credit Loss FinancingReceivableNonaccrualWithAllowanceForCreditLoss	3681000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual FinancingReceivableExcludingAccruedInterestNonaccrual	4800000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest90 Days Or More Past Due Still Accruing FinancingReceivableExcludingAccruedInterest90DaysOrMorePastDueStillAccruing	432000	usd
CY2024Q2	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	3851889000	usd
CY2024Q2	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	13407000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	3790901000	usd
CY2023Q4	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	12500000	usd
	ibcp	Current Expected Credit Loss Transition Method For Regulatory Purpose CurrentExpectedCreditLossTransitionMethodForRegulatoryPurpose	P3Y
CY2024Q2	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2024#OtherAssets
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2024#OtherAssets
CY2023Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2024#OtherLiabilities
CY2024Q2	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2024#OtherLiabilities
CY2024Q2	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	872000	usd
CY2023Q4	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	0	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	591974000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	679350000	usd
CY2024Q2	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	305654000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	318606000	usd
CY2024Q2	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	344220000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	353988000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	16099000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	16821000	usd
CY2024Q2	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	15935000	usd
CY2023Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	12063000	usd
CY2023Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	42243000	usd
CY2023Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	284740000	usd
CY2024Q2	us-gaap	Deposits Deposits	4614328000	usd
CY2023Q4	us-gaap	Deposits Deposits	4622879000	usd
CY2024Q2	us-gaap	Other Borrowings OtherBorrowings	50012000	usd
CY2023Q4	us-gaap	Other Borrowings OtherBorrowings	50026000	usd
CY2024Q2	us-gaap	Subordinated Debt SubordinatedDebt	39548000	usd
CY2023Q4	us-gaap	Subordinated Debt SubordinatedDebt	39510000	usd
CY2024Q2	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	39762000	usd
CY2023Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	39728000	usd
CY2024Q2	us-gaap	Other Liabilities OtherLiabilities	103391000	usd
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	20835633	shares
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	159108000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-72142000	usd
CY2024Q2	us-gaap	Stockholders Equity StockholdersEquity	430459000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	31221000	usd
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	3872000	usd
	us-gaap	Interest Expense Operating InterestExpenseOperating	49921000	usd
	us-gaap	Interest Expense Operating InterestExpenseOperating	35093000	usd
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	2693000	usd
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	usd
	us-gaap	Marketable Securities Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments	-269000	usd
	us-gaap	Marketable Securities Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments	-222000	usd
	ibcp	Mortgage Loan Servicing Income MortgageLoanServicingIncome	4816000	usd
	ibcp	Mortgage Loan Servicing Income MortgageLoanServicingIncome	4400000	usd
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	5435000	usd
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	5863000	usd
	us-gaap	Noninterest Income NoninterestIncome	27733000	usd
	us-gaap	Noninterest Income NoninterestIncome	25968000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	42021000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	39941000	usd
	ibcp	Data Processing DataProcessing	6512000	usd
	ibcp	Data Processing DataProcessing	5882000	usd
	us-gaap	Occupancy Net OccupancyNet	3960000	usd
	us-gaap	Occupancy Net OccupancyNet	4004000	usd
	ibcp	Interchange Expense InterchangeExpense	2224000	usd
	ibcp	Interchange Expense InterchangeExpense	2103000	usd
	us-gaap	Equipment Expense EquipmentExpense	1902000	usd
	us-gaap	Equipment Expense EquipmentExpense	1855000	usd
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	1477000	usd
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	1532000	usd
CY2024Q2	us-gaap	Advertising Expense AdvertisingExpense	788000	usd
CY2023Q2	us-gaap	Advertising Expense AdvertisingExpense	431000	usd
CY2024Q2	ibcp	Loan And Collection LoanAndCollection	699000	usd
CY2023Q2	ibcp	Loan And Collection LoanAndCollection	620000	usd
	ibcp	Loan And Collection LoanAndCollection	1211000	usd
	ibcp	Loan And Collection LoanAndCollection	1198000	usd
CY2024Q2	us-gaap	Communication Communication	499000	usd
CY2023Q2	us-gaap	Communication Communication	635000	usd
CY2024Q2	us-gaap	Professional Fees ProfessionalFees	544000	usd
CY2023Q2	us-gaap	Professional Fees ProfessionalFees	473000	usd
	us-gaap	Professional Fees ProfessionalFees	1030000	usd
	us-gaap	Professional Fees ProfessionalFees	1080000	usd
	ibcp	Costs Recoveries Related To Unfunded Lending Commitments CostsRecoveriesRelatedToUnfundedLendingCommitments	-789000	usd
	ibcp	Costs Recoveries Related To Unfunded Lending Commitments CostsRecoveriesRelatedToUnfundedLendingCommitments	-375000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	3585000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	3756000	usd
	us-gaap	Noninterest Expense NoninterestExpense	65526000	usd
	us-gaap	Noninterest Expense NoninterestExpense	63205000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	42987000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	34077000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8468000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6296000	usd
	us-gaap	Net Income Loss NetIncomeLoss	34519000	usd
	us-gaap	Net Income Loss NetIncomeLoss	27781000	usd
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.65
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.32
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.64
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.31
	us-gaap	Net Income Loss NetIncomeLoss	34519000	usd
	us-gaap	Net Income Loss NetIncomeLoss	27781000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	1796000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	13763000	usd
	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	1821000	usd
	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	0	usd
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	167091000	usd
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	156178000	usd
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	168399000	usd
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	146403000	usd
	ibcp	Provision For Loss Reimbursement On Sold Loans ProvisionForLossReimbursementOnSoldLoans	763000	usd
	ibcp	Provision For Loss Reimbursement On Sold Loans ProvisionForLossReimbursementOnSoldLoans	5477000	usd
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-1174000	usd
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-1255000	usd
	us-gaap	Increase Decrease In Loans Deferred Income IncreaseDecreaseInLoansDeferredIncome	1530000	usd
	us-gaap	Increase Decrease In Loans Deferred Income IncreaseDecreaseInLoansDeferredIncome	457000	usd
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	5013000	usd
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	4949000	usd
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	2697000	usd
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	3376000	usd
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	2693000	usd
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	usd
	us-gaap	Marketable Securities Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments	-269000	usd
	us-gaap	Marketable Securities Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments	-222000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	1170000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	1046000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	5470000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	10431000	usd
	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-1451000	usd
	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-3165000	usd
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-4939000	usd
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	5295000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	29580000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	33076000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	37273000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	278000	usd
	us-gaap	Proceeds Debt Securities Held To Maturity Previously Written Off Recovery ProceedsDebtSecuritiesHeldToMaturityPreviouslyWrittenOffRecovery	1125000	usd
	us-gaap	Proceeds Debt Securities Held To Maturity Previously Written Off Recovery ProceedsDebtSecuritiesHeldToMaturityPreviouslyWrittenOffRecovery	0	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	49241000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	59513000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	9391000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	12752000	usd
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	usd
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	440000	usd
	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	0	usd
	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	478000	usd
	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	722000	usd
	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	0	usd
	ibcp	Net Increase Decrease Of Portfolio Loans Originated Net Of Principal Payments NetIncreaseDecreaseOfPortfolioLoansOriginatedNetOfPrincipalPayments	70623000	usd
	ibcp	Net Increase Decrease Of Portfolio Loans Originated Net Of Principal Payments NetIncreaseDecreaseOfPortfolioLoansOriginatedNetOfPrincipalPayments	198913000	usd
	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	8180000	usd
	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	51481000	usd
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	889000	usd
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	905000	usd
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	497000	usd
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	384000	usd
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	299000	usd
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	272000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2449000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3071000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	34545000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-77317000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-8551000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	108567000	usd
	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	-14000	usd
	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	-60991000	usd
	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	0	usd
	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	135000000	usd
	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	0	usd
	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	70000000	usd
	us-gaap	Payments Of Dividends PaymentsOfDividends	10016000	usd
	us-gaap	Payments Of Dividends PaymentsOfDividends	9718000	usd
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	71000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3270000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	977000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	597000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-19558000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	99062000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	44567000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	54821000	usd
CY2024Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	214348000	usd
CY2023Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	129192000	usd
	us-gaap	Interest Paid Net InterestPaidNet	52681000	usd
	us-gaap	Interest Paid Net InterestPaidNet	32812000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	6800000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	7600000	usd
	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	689000	usd
	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	604000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	2354000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	786000	usd
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	415570000	usd
CY2024Q2	us-gaap	Net Income Loss NetIncomeLoss	18528000	usd
CY2024Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.24
CY2024Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	5017000	usd
	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	102324	shares
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1170000	usd
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	39950	shares
	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	977000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1314000	usd
CY2024Q2	us-gaap	Stockholders Equity StockholdersEquity	430459000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	347596000	usd
	us-gaap	Net Income Loss NetIncomeLoss	27781000	usd
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.46
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	9718000	usd
	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	200000	shares
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	3270000	usd
	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	23000	shares
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	71000	usd
	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	86763	shares
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1046000	usd
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	30040	shares
	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	597000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	12253000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	375162000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	654609000	usd
CY2024Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	502000	usd
CY2024Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	63137000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	591974000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	744050000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	464000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	65164000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	679350000	usd
CY2024Q2	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	344220000	usd
CY2024Q2	ibcp	Debt Securities Held To Maturity Transfer Unrealized Loss DebtSecuritiesHeldToMaturityTransferUnrealizedLoss	17828000	usd
CY2024Q2	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	155000	usd
CY2024Q2	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss	362203000	usd
CY2024Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	10000	usd
CY2024Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	56559000	usd
CY2024Q2	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	305654000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	353988000	usd
CY2023Q4	ibcp	Debt Securities Held To Maturity Transfer Unrealized Loss DebtSecuritiesHeldToMaturityTransferUnrealizedLoss	19503000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	157000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss	373648000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	868000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	55910000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	318606000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	5387000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	48000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	571751000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	63089000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	577138000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	63137000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	14487000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	445000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	652697000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	64719000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	667184000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	65164000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	4100000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	4600000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2024Q2	us-gaap	Debt Securities Held To Maturity Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityAccruedInterestAfterAllowanceForCreditLoss	1800000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityAccruedInterestAfterAllowanceForCreditLoss	1800000	usd
CY2023Q1	ibcp	Debt Securities Held To Maturity Defaulted Number Of Securities DebtSecuritiesHeldToMaturityDefaultedNumberOfSecurities	1	security
CY2023Q1	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Allowance For Credit Loss Period Increase Decrease DebtSecuritiesHeldToMaturityExcludingAccruedInterestAllowanceForCreditLossPeriodIncreaseDecrease	3000000	usd
CY2023Q1	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Allowance For Credit Loss Writeoff DebtSecuritiesHeldToMaturityExcludingAccruedInterestAllowanceForCreditLossWriteoff	3000000	usd
CY2024Q1	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	1100000	usd
CY2024Q2	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	155000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	157000	usd
CY2024Q1	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	155000	usd
CY2024Q2	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityExcludingAccruedInterestCreditLossExpenseReversal	0	usd
CY2024Q2	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Allowance For Credit Loss Recovery DebtSecuritiesHeldToMaturityExcludingAccruedInterestAllowanceForCreditLossRecovery	0	usd
CY2024Q2	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Allowance For Credit Loss Writeoff DebtSecuritiesHeldToMaturityExcludingAccruedInterestAllowanceForCreditLossWriteoff	0	usd
CY2024Q2	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	155000	usd
CY2023Q1	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	160000	usd
CY2023Q2	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityExcludingAccruedInterestCreditLossExpenseReversal	0	usd
CY2023Q2	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Allowance For Credit Loss Recovery DebtSecuritiesHeldToMaturityExcludingAccruedInterestAllowanceForCreditLossRecovery	0	usd
CY2023Q2	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Allowance For Credit Loss Writeoff DebtSecuritiesHeldToMaturityExcludingAccruedInterestAllowanceForCreditLossWriteoff	0	usd
CY2023Q2	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	160000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	157000	usd
	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityExcludingAccruedInterestCreditLossExpenseReversal	-1127000	usd
	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Allowance For Credit Loss Recovery DebtSecuritiesHeldToMaturityExcludingAccruedInterestAllowanceForCreditLossRecovery	1125000	usd
	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Allowance For Credit Loss Writeoff DebtSecuritiesHeldToMaturityExcludingAccruedInterestAllowanceForCreditLossWriteoff	0	usd
CY2024Q2	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	155000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	168000	usd
	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityExcludingAccruedInterestCreditLossExpenseReversal	2992000	usd
	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Allowance For Credit Loss Recovery DebtSecuritiesHeldToMaturityExcludingAccruedInterestAllowanceForCreditLossRecovery	0	usd
	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Allowance For Credit Loss Writeoff DebtSecuritiesHeldToMaturityExcludingAccruedInterestAllowanceForCreditLossWriteoff	3000000	usd
CY2023Q2	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	160000	usd
CY2024Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	13473000	usd
CY2024Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	13144000	usd
CY2024Q2	ibcp	Debt Securities Held To Maturity Amortized Cost Before Allowance For Credit Loss Maturity Allocated And Single Maturity Date Year One DebtSecuritiesHeldToMaturityAmortizedCostBeforeAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne	4480000	usd
CY2024Q2	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	4450000	usd
CY2024Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	154690000	usd
CY2024Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	141729000	usd
CY2024Q2	ibcp	Debt Securities Held To Maturity Amortized Cost Before Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year One Through Five DebtSecuritiesHeldToMaturityAmortizedCostBeforeAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughFive	54204000	usd
CY2024Q2	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	49767000	usd
CY2024Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	49675000	usd
CY2024Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	43459000	usd
CY2024Q2	ibcp	Debt Securities Held To Maturity Amortized Cost Before Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year5 Through10 DebtSecuritiesHeldToMaturityAmortizedCostBeforeAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYear5Through10	95934000	usd
CY2024Q2	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	81822000	usd
CY2024Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	199129000	usd
CY2024Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	173574000	usd
CY2024Q2	ibcp	Debt Securities Held To Maturity Amortized Cost Before Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year10 DebtSecuritiesHeldToMaturityAmortizedCostBeforeAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYear10	81542000	usd
CY2024Q2	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	69260000	usd
CY2024Q2	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	416967000	usd
CY2024Q2	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	371906000	usd
CY2024Q2	ibcp	Debt Securities Held To Maturity Amortized Cost Before Allowance For Credit Loss Maturity Allocated And Single Maturity Date DebtSecuritiesHeldToMaturityAmortizedCostBeforeAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDate	236160000	usd
CY2024Q2	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue	205299000	usd
CY2024Q2	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	85522000	usd
CY2024Q2	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	75900000	usd
CY2024Q2	ibcp	Held To Maturity Government Agency Residential Mortgage Backed Without Single Maturity Date Amortized Cost Basis HeldToMaturityGovernmentAgencyResidentialMortgageBackedWithoutSingleMaturityDateAmortizedCostBasis	114249000	usd
CY2024Q2	ibcp	Held To Maturity Government Agency Residential Mortgage Backed Debt Maturities Without Single Maturity Date Fair Value HeldToMaturityGovernmentAgencyResidentialMortgageBackedDebtMaturitiesWithoutSingleMaturityDateFairValue	89764000	usd
CY2024Q2	ibcp	Government Agency Commercial Mortgage Backed Without Single Maturity Date Amortized Cost Basis GovernmentAgencyCommercialMortgageBackedWithoutSingleMaturityDateAmortizedCostBasis	13302000	usd
CY2024Q2	ibcp	Government Agency Commercial Mortgage Backed Debt Maturities Without Single Maturity Date Fair Value GovernmentAgencyCommercialMortgageBackedDebtMaturitiesWithoutSingleMaturityDateFairValue	11896000	usd
CY2024Q2	ibcp	Held To Maturity Government Agency Commercial Mortgage Backed Without Single Maturity Date Amortized Cost Basis HeldToMaturityGovernmentAgencyCommercialMortgageBackedWithoutSingleMaturityDateAmortizedCostBasis	4213000	usd
CY2024Q2	ibcp	Held To Maturity Government Agency Commercial Mortgage Backed Debt Maturities Without Single Maturity Date Fair Value HeldToMaturityGovernmentAgencyCommercialMortgageBackedDebtMaturitiesWithoutSingleMaturityDateFairValue	3782000	usd
CY2024Q2	ibcp	Private Label Mortgage Backed Without Single Maturity Date Amortized Cost Basis PrivateLabelMortgageBackedWithoutSingleMaturityDateAmortizedCostBasis	86490000	usd
CY2024Q2	ibcp	Private Label Mortgage Backed Debt Maturities Without Single Maturity Date Fair Value PrivateLabelMortgageBackedDebtMaturitiesWithoutSingleMaturityDateFairValue	80842000	usd
CY2024Q2	ibcp	Held To Maturity Private Label Mortgage Backed Without Single Maturity Date Amortized Cost Basis HeldToMaturityPrivateLabelMortgageBackedWithoutSingleMaturityDateAmortizedCostBasis	7581000	usd
CY2024Q2	ibcp	Held To Maturity Private Label Mortgage Backed Debt Maturities Without Single Maturity Date Fair Value HeldToMaturityPrivateLabelMortgageBackedDebtMaturitiesWithoutSingleMaturityDateFairValue	6809000	usd
CY2024Q2	ibcp	Other Asset Backed Without Single Maturity Date Amortized Cost Basis OtherAssetBackedWithoutSingleMaturityDateAmortizedCostBasis	52328000	usd
CY2024Q2	ibcp	Other Asset Backed Debt Maturities Without Single Maturity Date Fair Value OtherAssetBackedDebtMaturitiesWithoutSingleMaturityDateFairValue	51430000	usd
CY2024Q2	ibcp	Held To Maturity Other Asset Backed Without Single Maturity Date Amortized Cost Basis HeldToMaturityOtherAssetBackedWithoutSingleMaturityDateAmortizedCostBasis	0	usd
CY2024Q2	ibcp	Held To Maturity Other Asset Mortgage Backed Debt Maturities Without Single Maturity Date Fair Value HeldToMaturityOtherAssetMortgageBackedDebtMaturitiesWithoutSingleMaturityDateFairValue	0	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	654609000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	591974000	usd
CY2024Q2	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss	362203000	usd
CY2024Q2	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	305654000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	278000	usd
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	usd
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	222000	usd
CY2024Q2	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	2700000	usd
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	2700000	usd
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	900000	usd
CY2024Q2	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	900000	usd
CY2023Q2	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	650000	usd
CY2024Q2	us-gaap	Financing Receivable Modified Weighted Average Term Increase From Modification FinancingReceivableModifiedWeightedAverageTermIncreaseFromModification	P12Y7M6D
	us-gaap	Financing Receivable Modified Weighted Average Term Increase From Modification FinancingReceivableModifiedWeightedAverageTermIncreaseFromModification	P7Y8M12D
CY2023Q2	us-gaap	Financing Receivable Excluding Accrued Interest Modified Subsequent Default FinancingReceivableExcludingAccruedInterestModifiedSubsequentDefault	0	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Modified Period FinancingReceivableExcludingAccruedInterestModifiedPeriod	0	usd
	ibcp	Past Due Period For Modified Loans PastDuePeriodForModifiedLoans	P90D
CY2024Q2	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	800000	usd
CY2023Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	600000	usd
CY2024Q2	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	100000	usd
CY2023Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	600000	usd
CY2024Q2	us-gaap	Net Income Loss NetIncomeLoss	18528000	usd
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	14790000	usd
	us-gaap	Net Income Loss NetIncomeLoss	34519000	usd
	us-gaap	Net Income Loss NetIncomeLoss	27781000	usd
CY2024Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20902000	shares
CY2023Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	21041000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20889000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	21072000	shares
CY2024Q2	ibcp	Stock Units For Deferred Compensation Plan For Non Employee Directors StockUnitsForDeferredCompensationPlanForNonEmployeeDirectors	179000	shares
CY2023Q2	ibcp	Stock Units For Deferred Compensation Plan For Non Employee Directors StockUnitsForDeferredCompensationPlanForNonEmployeeDirectors	156000	shares
	ibcp	Stock Units For Deferred Compensation Plan For Non Employee Directors StockUnitsForDeferredCompensationPlanForNonEmployeeDirectors	177000	shares
	ibcp	Stock Units For Deferred Compensation Plan For Non Employee Directors StockUnitsForDeferredCompensationPlanForNonEmployeeDirectors	154000	shares
CY2024Q2	ibcp	Weighted Average Number Of Performance Shares Stock WeightedAverageNumberOfPerformanceSharesStock	22000	shares
CY2023Q2	ibcp	Weighted Average Number Of Performance Shares Stock WeightedAverageNumberOfPerformanceSharesStock	18000	shares
CY2024Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2000	shares
CY2023Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	8000	shares
	ibcp	Weighted Average Number Of Performance Shares Stock WeightedAverageNumberOfPerformanceSharesStock	3000	shares
	ibcp	Weighted Average Number Of Performance Shares Stock WeightedAverageNumberOfPerformanceSharesStock	14000	shares
CY2024Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	21105000	shares
CY2023Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	21223000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	21092000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	21260000	shares
CY2024Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.89
CY2023Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.70
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.65
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.32
CY2024Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.88
CY2023Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.64
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.31
	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	-1400000	usd
	us-gaap	Derivative Term Of Contract DerivativeTermOfContract	P4Y2M12D
CY2024Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	41423000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	38683000	usd
CY2024Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	19266000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	21835000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	11916000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	10170000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	11916000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	9912000	usd
CY2024Q2	us-gaap	Goodwill Goodwill	28300000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	28300000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	258000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	487000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	460000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	434000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	107000	usd
CY2024Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	1746000	usd
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized	400000	shares
CY2024Q2	ibcp	Shares Issued On Deferral Basis Credited Percentage Of Current Value SharesIssuedOnDeferralBasisCreditedPercentageOfCurrentValue	0.90
CY2024Q2	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	3700000	usd
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y1M6D
CY2024Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4600000	usd
CY2023Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3400000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8500000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6300000	usd
CY2024Q2	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	109000	usd
	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	109000	usd
CY2023Q2	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	8000.000	usd
	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	44000.000	usd
CY2024Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	200000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	200000	usd
CY2024Q2	ibcp	Retained Earnings Accumulated Deficit Subsidiary RetainedEarningsAccumulatedDeficitSubsidiary	200600000	usd
CY2024Q2	us-gaap	Banking Regulation Capital Conservation Buffer Capital Conserved Minimum BankingRegulationCapitalConservationBufferCapitalConservedMinimum	0.025
CY2023Q4	us-gaap	Banking Regulation Capital Conservation Buffer Capital Conserved Minimum BankingRegulationCapitalConservationBufferCapitalConservedMinimum	0.0250
CY2024Q2	us-gaap	Banking Regulation Capital Conservation Buffer Capital Conserved Minimum BankingRegulationCapitalConservationBufferCapitalConservedMinimum	0.0250
	ibcp	Loans Held For Sale Unrealized Gain Loss LoansHeldForSaleUnrealizedGainLoss	160000	usd
	ibcp	Servicing Asset Unrealized Gain Loss ServicingAssetUnrealizedGainLoss	383000	usd
	ibcp	Loans Held For Sale Unrealized Gain Loss LoansHeldForSaleUnrealizedGainLoss	1739000	usd
	ibcp	Servicing Asset Unrealized Gain Loss ServicingAssetUnrealizedGainLoss	-15000	usd
CY2024Q2	ibcp	Collateral Dependent Loans Carrying Amount CollateralDependentLoansCarryingAmount	6900000	usd
CY2024Q2	ibcp	Collateral Dependent Loans Valuation Allowance CollateralDependentLoansValuationAllowance	2100000	usd
CY2023Q4	ibcp	Collateral Dependent Loans Carrying Amount CollateralDependentLoansCarryingAmount	2000000.0	usd
CY2023Q4	ibcp	Collateral Dependent Loans Valuation Allowance CollateralDependentLoansValuationAllowance	1300000	usd
CY2024Q2	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-100000	usd
CY2023Q2	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1700000	usd
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1600000	usd
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2000000.0	usd
CY2024Q2	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	15935000	usd
CY2024Q2	us-gaap	Fair Value Option Aggregate Differences Loans And Long Term Receivables FairValueOptionAggregateDifferencesLoansAndLongTermReceivables	99000	usd
CY2024Q2	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	15836000	usd
CY2023Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	12063000	usd
CY2023Q4	us-gaap	Fair Value Option Aggregate Differences Loans And Long Term Receivables FairValueOptionAggregateDifferencesLoansAndLongTermReceivables	-61000	usd
CY2023Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	12124000	usd
CY2024Q2	ibcp	Reciprocal Deposits Included In Deposits With No Stated Maturity ReciprocalDepositsIncludedInDepositsWithNoStatedMaturity	807480000	usd
CY2023Q4	ibcp	Reciprocal Deposits Included In Deposits With No Stated Maturity ReciprocalDepositsIncludedInDepositsWithNoStatedMaturity	723014000.000	usd
CY2024Q2	ibcp	Reciprocal Deposits Included In Deposits With Stated Maturity ReciprocalDepositsIncludedInDepositsWithStatedMaturity	118348000	usd
CY2023Q4	ibcp	Reciprocal Deposits Included In Deposits With Stated Maturity ReciprocalDepositsIncludedInDepositsWithStatedMaturity	109006000.000	usd
CY2024Q2	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	525000	usd
CY2024Q2	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-276000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	801000	usd
CY2023Q2	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	279000	usd
CY2023Q2	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-22000	usd
CY2023Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	301000	usd
	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	615000	usd
	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-699000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1314000	usd
	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	11990000	usd
	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-263000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	12253000	usd
	ibcp	Percentage Of Revenue Excluded From Asu201409 PercentageOfRevenueExcludedFromASU201409	0.874
	ibcp	Percentage Of Revenue Excluded From Asu201409 PercentageOfRevenueExcludedFromASU201409	0.868
CY2023Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	0	usd
CY2024Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	0	usd
CY2023Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	0	usd
CY2024Q2	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	0	usd
	ibcp	Number Of Real Estate Assets Sold NumberOfRealEstateAssetsSold	0	asset
	ibcp	Number Of Real Estate Assets Sold NumberOfRealEstateAssetsSold	0	asset
CY2024Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7896000	usd
CY2024Q2	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	188000	usd
CY2024Q2	ibcp	Noninterest Income Other Operating Income Other NoninterestIncomeOtherOperatingIncomeOther	971000	usd
CY2024Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	2717000	usd
CY2023Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8068000	usd
CY2023Q2	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	98000	usd
CY2023Q2	ibcp	Noninterest Income Other Operating Income Other NoninterestIncomeOtherOperatingIncomeOther	1457000	usd
CY2023Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	3134000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	15471000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	369000	usd
	ibcp	Noninterest Income Other Operating Income Other NoninterestIncomeOtherOperatingIncomeOther	1956000	usd
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	5435000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	15633000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	209000	usd
	ibcp	Noninterest Income Other Operating Income Other NoninterestIncomeOtherOperatingIncomeOther	2572000	usd
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	5863000	usd
CY2024Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	349000	usd
CY2023Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	359000	usd
	us-gaap	Operating Lease Cost OperatingLeaseCost	695000	usd
	us-gaap	Operating Lease Cost OperatingLeaseCost	721000	usd
CY2024Q2	us-gaap	Variable Lease Cost VariableLeaseCost	11000	usd
CY2023Q2	us-gaap	Variable Lease Cost VariableLeaseCost	24000	usd
	us-gaap	Variable Lease Cost VariableLeaseCost	22000	usd
	us-gaap	Variable Lease Cost VariableLeaseCost	48000	usd
CY2024Q2	us-gaap	Short Term Lease Cost ShortTermLeaseCost	23000	usd
CY2023Q2	us-gaap	Short Term Lease Cost ShortTermLeaseCost	24000	usd
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	47000	usd
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	46000	usd
CY2024Q2	us-gaap	Lease Cost LeaseCost	383000	usd
CY2023Q2	us-gaap	Lease Cost LeaseCost	407000	usd
	us-gaap	Lease Cost LeaseCost	764000	usd
	us-gaap	Lease Cost LeaseCost	815000	usd
CY2024Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	6692000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	4911000	usd
CY2024Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	6906000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	5114000	usd
CY2024Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y4M13D
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y10D
CY2024Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.036
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.027
CY2024Q2	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	700000	usd
CY2024Q2	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	1348000	usd
CY2024Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1184000	usd
CY2024Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	1003000	usd
CY2024Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	938000	usd
CY2024Q2	ibcp	Lessee Operating Lease Liability Payments Due After Year Four LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour	2867000	usd
CY2024Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	8040000	usd
CY2024Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1134000	usd
CY2024Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	6906000	usd
CY2024Q2	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2024Q2	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2024Q2	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2024Q2	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false

Files In Submission

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0000039311-24-000073-index.html	Edgar Link	pending
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Financial_Report.xlsx	Edgar Link	pending
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ibcp-20240630_cal.xml	Edgar Link	unprocessable
ibcp-20240630_lab.xml	Edgar Link	unprocessable

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$IBCP
INDEPENDENT BANK CORP /MI/ Stock $ibcp

2024 Q3 Form 10-Q Financial Statement

#000003931124000073 Filed on August 05, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IBCP INDEPENDENT BANK CORP /MI/ Stock $ibcp

2024 Q3 Form 10-Q Financial Statement

#000003931124000073 Filed on August 05, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IBCP
INDEPENDENT BANK CORP /MI/ Stock $ibcp