Earnings Per Share - Reconciliation of Earnings Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share [Abstract]
Net income (loss)	$ 1,130	$ 29,181	$ (2,137)
Less: Dividends paid on and earnings allocated to participating securities	13	115
Income (loss) attributable to common stock	$ 1,117	$ 29,066	$ (2,137)
Weighted average common shares outstanding, including participating securities	19,876,377	19,620,251	19,462,055
Less: Weighted average participating securities	278,946	81,957
Weighted average common shares outstanding	19,597,431	19,538,294	19,462,055
Basic earnings (loss) per common share	$ 0.06	$ 1.49	$ (0.11)
Weighted average common shares outstanding	19,597,431	19,538,294	19,462,055
Weighted average common equivalent shares outstanding	282	6,743
Weighted average common and equivalent shares outstanding	19,597,713	19,545,037	19,462,055
Diluted earnings (loss) per common share	$ 0.06	$ 1.49	$ (0.11)
Dividends per common share	$ 0.24	$ 0.72	$ 0.64