Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Loans, including fees	$ 9,472	$ 8,071	$ 18,710	$ 15,709
Securities:
Taxable	1,757	1,347	3,386	2,648
Tax-exempt	636	869	1,340	1,734
Dividends	24	11	36	22
Federal funds sold and other income	329	302	583	674
Total interest income	12,218	10,600	24,055	20,787
us-gaap_InterestExpenseAbstract
Deposits	3,103	2,153	5,909	3,149
Advances - Federal Home Loan Bank ("FHLB")	51	58	99	58
Borrowed funds - BTFP	407	77	790	77
Total interest expense	3,561	2,288	6,798	3,284
Net interest income	8,657	8,312	17,257	17,503
Provision for credit losses	360	350	640	543
Net interest income after provision for credit losses	8,297	7,962	16,617	16,960
us-gaap_NoninterestIncomeAbstract
Noninterest income, financial services	1,759	1,769	3,460	3,463
Gain on sale of securities	0	(14)	32	(14)
Unrealized (loss) gain on equity securities	(6)	(92)	(74)	45
Gain on sale of loans	169	104	270	190
Increase in cash surrender value of life insurance	66	66	114	111
Other income	68	61	188	123
Total noninterest income	2,023	1,863	3,922	3,854
us-gaap_NoninterestExpenseAbstract
Compensation and benefits	3,962	3,802	7,805	7,591
Occupancy and equipment	480	446	943	893
Data processing	1,115	1,081	2,191	2,112
Professional fees	303	165	562	351
Advertising	79	94	167	177
Other expenses	1,061	1,078	2,089	1,943
Total noninterest expense	7,000	6,666	13,757	13,067
Income before income taxes	3,320	3,159	6,782	7,747
Income tax expense	488	429	995	1,198
Net Income	2,832	2,730	5,787	6,549
Less: net income attributable to noncontrolling interest in subsidiary	4	4	7	7
Net Income Attributable to First Capital, Inc.	$ 2,828	$ 2,726	$ 5,780	$ 6,542
Earnings per common share attributable to First Capital, Inc.:
Basic (in dollars per share)	$ 0.85	$ 0.82	$ 1.73	$ 1.95
Diluted (in dollars per share)	0.85	0.82	1.73	1.95
Dividends per share (in dollars per share)	$ 0.27	$ 0.27	$ 0.54	$ 0.54
Deposit Account [Member]
us-gaap_NoninterestIncomeAbstract
Noninterest income, financial services	$ 564	$ 578	$ 1,157	$ 1,140
ATM and Debit Card Fees [Member]
us-gaap_NoninterestIncomeAbstract
Noninterest income, financial services	1,150	1,141	2,210	2,228
Investment Advisory, Management and Administrative Service [Member]
us-gaap_NoninterestIncomeAbstract
Noninterest income, financial services	$ 12	$ 19	$ 25	$ 31