Other Real Estate Owned and Other Repossessed Assets - Expenses Related to Foreclosed and Repossessed Assets (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Other Real Estate Owned And Other Repossessed Assets [Abstract]
Net loss on sales	$ 91	$ 108
Provision for unrealized losses, net	292	323
Operating expenses, net of rental income	213	493
Total expenses	$ 596	$ 924