Investments in Affiliated Companies - Summary of Statement of Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Other Items Net Interest And Other Financial Income [Line Items]
Income - interest income from subordinated debentures issued by HopFed Bancorp, Inc.	$ 8,658	$ 9,305
Subsidiaries [Member]
Other Items Net Interest And Other Financial Income [Line Items]
Income - interest income from subordinated debentures issued by HopFed Bancorp, Inc.	86	88
Net income	$ 86	$ 88