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Period of time the maturity date of a troubled debt restructured loan is extended for.

No definition available.

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Period of time the maturity date of a troubled debt restructured loan is extended for in certain circumstances.

No definition available.

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Period of time an interest rate is modified for in a troubled debt restructuring.

No definition available.

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Period of time an interest rate is modified for in a troubled debt restructuring in certain circumstances.

No definition available.

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- References

No definition available.

Name:	ibcp_LoansClassifiedAsTroubledDebtRestructuringsAbstract
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The number of consecutive timely payments required to be received for non-accrual loans to be removed from inclusion with the non-performing troubled debt restructurings.

No definition available.

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The period when loan payment is considered to be in default.

No definition available.

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Data Type:	xbrli:durationItemType
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Disclosure of troubled debt restructurings.

No definition available.

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- References

No definition available.

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Specific allowance for loan and lease losses on receivable financings that are classified as troubled debt restructurings.

No definition available.

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Period Type:	instant

Amount of increase (decrease) of allowance reserve for credit loss.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(d))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Number of financing receivables that have been modified by troubled debt restructurings.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Reflects the amount of the write-down related to a troubled debt restructuring.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18845-111554

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Namespace Prefix:
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Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialLoanMember
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Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix:
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