Share-Based Compensation - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 47,000	$ 53,000	$ 94,000	$ 111,000
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted	$ 288,000		$ 288,000
Weighted-average period over which unrecognized compensation is expected to be recognized			2 years
Common stock issued pursuant to option exercises			69,333	0
Proceeds from exercise of stock options			$ 26,000	$ 0
Stock options granted			446,100	568,000
Stock options forfeited			182,534	22,000
Stock options outstanding	2,634,566		2,634,566		2,440,000
Weighted average exercise price	$ 1.00		$ 1.00		$ 1.15
Common stock, shares outstanding	28,585,496		28,585,496		28,516,163
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
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of the liability	$ 1,000		$ 1,000		$ 1,000