Condensed Parent Company Only Financial Statements - Summary of Condensed Balance Sheets (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2003
Assets:
Cash	$ 36,339	$ 37,965
Total assets	931,399	917,510
Liabilities:
Subordinated debentures	10,310	10,310			$ 10,310
Total liabilities	840,613	830,098
Equity:
Preferred stock
Common stock	80	80
Additional paid-capital	59,105	58,825
Retained earnings	55,134	51,162
Treasury stock - common stock	(16,706)	(16,655)
Unearned ESOP shares	(5,268)	(5,901)
Accumulated other comprehensive loss	(1,559)	(99)
Total equity	90,786	87,412	$ 86,428	$ 87,630
Total liabilities and equity	931,399	917,510
HopFed [Member]
Assets:
Cash	1,086	862
Investment in subsidiary	99,745	96,826
Prepaid expenses and other assets	871	1,109
Total assets	101,702	98,797
Liabilities:
Dividend payable - common	463	353
Interest payable	141	112
Other liabilities	2	610
Subordinated debentures	10,310	10,310
Total liabilities	10,916	11,385
Equity:
Preferred stock
Common stock	80	80
Additional paid-capital	59,105	58,825
Retained earnings	55,134	51,162
Treasury stock - common stock	(16,706)	(16,655)
Unearned ESOP shares	(5,268)	(5,901)
Accumulated other comprehensive loss	(1,559)	(99)
Total equity	90,786	87,412
Total liabilities and equity	$ 101,702	$ 98,797