Share-Based Compensation - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 53	$ 70	$ 111	$ 139
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted	349		349
Weighted-average period over which unrecognized compensation is expected to be recognized			2 years 2 months 12 days
Proceeds from exercise of stock options				3
Common stock issued pursuant to option exercises			0	10,000
Stock options granted			568,000	553,000
Stock options forfeited			22,000	91,133
Common stock, shares outstanding	28,481,496		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	$ 4		$ 4		$ 8
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares outstanding	0		0
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares outstanding	0		0