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Note 1 - Presentation of Interim Information (Details Textual) $ in Millions	1 Months Ended
	Apr. 29, 2020 USD ($)
Subsequent Event [Member]
Authorization Received for PPP Loans, Amount	$ 44.6

X

- Definition

Amount of authorization received for loans qualified for Paycheck Protection Program.

+ References

No definition available.

+ Details

Name:	fcap_AuthorizationReceivedForPppLoansAmount
Namespace Prefix:	fcap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: