Note 23 - Parent Company Condensed Financial Information - Condensed Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Dividends									$ 67	$ 107
Other operating expenses									(3,733)	(2,720)
Income tax benefit	$ (626)	$ (666)	$ (667)	$ (564)	$ (501)	$ (507)	$ (487)	$ (469)	(2,523)	(1,964)
Net income attributable to First Capital, Inc.	$ 1,741	$ 1,758	$ 1,783	$ 1,582	$ 1,106	$ 1,398	$ 1,228	$ 1,466	6,864	5,198
Parent Company [Member]
Dividend income from subsidiary									2,550	18,200
Dividends									152	9
Other operating expenses									(534)	(1,116)
Income before income taxes and equity in undistributed net income of subsidiaries									2,168	17,093
Income tax benefit									158	179
Income before equity in undistributed net income of subsidiaries									2,326	17,272
Equity in undistributed net income of subsidiaries									4,538	(12,074)
Net income attributable to First Capital, Inc.									$ 6,864	$ 5,198