Share-Based Compensation - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 57	$ 69
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted	410
Weighted-average period over which unrecognized compensation is expected to be recognized	2 years 3 months 18 days
Proceeds from exercise of stock options		3
Common stock issued pursuant to option exercises	0	10,000
Stock options granted	568,000	543,000
Stock options forfeited	0	54,000
Common stock, shares outstanding	28,481,496		28,481,496
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of the liability	$ 7		$ 8
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares outstanding	0
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares outstanding	0