Income Per Share - Reconciliation of Basic and Diluted Income Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Basic IPS:
Net income available to common stockholders	$ 354	$ 984
Average common shares outstanding	7,416,716	7,488,445
Net income per share available to common shareholders, basic	$ 0.05	$ 0.13
Diluted IPS
Net income available to common stockholders	$ 354	$ 984
Average common shares outstanding	7,416,716	7,488,445
Dilutive effect of stock options
Average diluted shares outstanding	7,416,716	7,488,445
Net income per share available to common shareholders, diluted	$ 0.05	$ 0.13