Note 3 - Loans and Allowance for Loan Losses - Recorded Investments in Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Individually evaluated for impairment	$ 3,570	$ 3,707
Collectively evaluated for impairment	395,026	381,427
Recorded investment in loans	399,152	385,764
Principal loan balance	397,012	383,703
Accrued interest receivable	1,174	1,224
Net deferred loan origination fees and costs	966	837
Receivables Acquired with Deteriorated Credit Quality [Member]
Recorded investment in loans	556	630
Real Estate Mortgage Portfolio Segment [Member] \| Residential Loan [Member]
Individually evaluated for impairment	2,711	2,083
Collectively evaluated for impairment	132,146	135,904
Recorded investment in loans	135,240	138,377
Principal loan balance	134,773	137,842
Accrued interest receivable	382	455
Net deferred loan origination fees and costs	85	80
Real Estate Mortgage Portfolio Segment [Member] \| Residential Loan [Member] \| Receivables Acquired with Deteriorated Credit Quality [Member]
Recorded investment in loans	383	390
Real Estate Mortgage Portfolio Segment [Member] \| Land Loan [Member]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	17,943	13,951
Recorded investment in loans	17,943	13,951
Principal loan balance	17,870	13,895
Accrued interest receivable	56	42
Net deferred loan origination fees and costs	17	14
Real Estate Mortgage Portfolio Segment [Member] \| Land Loan [Member] \| Receivables Acquired with Deteriorated Credit Quality [Member]
Recorded investment in loans	0	0
Real Estate Mortgage Portfolio Segment [Member] \| Construction Loans [Member]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	25,135	19,489
Recorded investment in loans	25,135	19,489
Principal loan balance	25,078	19,445
Accrued interest receivable	61	44
Net deferred loan origination fees and costs	(4)	0
Real Estate Mortgage Portfolio Segment [Member] \| Construction Loans [Member] \| Receivables Acquired with Deteriorated Credit Quality [Member]
Recorded investment in loans	0	0
Real Estate Mortgage Portfolio Segment [Member] \| Commercial Real Estate Loan [Member]
Individually evaluated for impairment	435	1,217
Collectively evaluated for impairment	93,235	95,212
Recorded investment in loans	93,843	96,669
Principal loan balance	93,638	96,462
Accrued interest receivable	238	249
Net deferred loan origination fees and costs	(33)	(42)
Real Estate Mortgage Portfolio Segment [Member] \| Commercial Real Estate Loan [Member] \| Receivables Acquired with Deteriorated Credit Quality [Member]
Recorded investment in loans	173	240
Commercial Portfolio Segment [Member]
Individually evaluated for impairment	121	143
Collectively evaluated for impairment	28,049	23,983
Recorded investment in loans	28,170	24,126
Principal loan balance	28,092	24,056
Accrued interest receivable	75	67
Net deferred loan origination fees and costs	3	3
Commercial Portfolio Segment [Member] \| Receivables Acquired with Deteriorated Credit Quality [Member]
Recorded investment in loans	0	0
Consumer Portfolio Segment [Member] \| Home Equity and Second Mortgage [Member]
Individually evaluated for impairment	259	244
Collectively evaluated for impairment	46,880	43,587
Recorded investment in loans	47,139	43,831
Principal loan balance	46,089	42,908
Accrued interest receivable	152	141
Net deferred loan origination fees and costs	898	782
Consumer Portfolio Segment [Member] \| Home Equity and Second Mortgage [Member] \| Receivables Acquired with Deteriorated Credit Quality [Member]
Recorded investment in loans	0	0
Consumer Portfolio Segment [Member] \| Other Consumer Loan [Member]
Individually evaluated for impairment	44	20
Collectively evaluated for impairment	51,638	49,301
Recorded investment in loans	51,682	49,321
Principal loan balance	51,472	49,095
Accrued interest receivable	210	226
Net deferred loan origination fees and costs	0	0
Consumer Portfolio Segment [Member] \| Other Consumer Loan [Member] \| Receivables Acquired with Deteriorated Credit Quality [Member]
Recorded investment in loans	$ 0	$ 0

Represents loans and leases receivable accrued interest.

No definition available.

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Namespace Prefix:	fcap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the loans and leases receivable principal balance.

+ References

No definition available.

+ Details

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Namespace Prefix:	fcap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The balance of financing receivables that were collectively evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	instant

- Definition

The balance of financing receivables that were individually evaluated for impairment.

+ References

+ Details

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Period Type:	instant

- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6378536&loc=d3e10092-111533

+ Details

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