Capital Stock - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended						0 Months Ended		0 Months Ended
	Mar. 19, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Warrant One [Member]	Dec. 31, 2013 Warrant Two [Member]	Dec. 31, 2013 Series A Convertible Preferred Stock [Member]	Feb. 10, 2014 Subsequent Events [Member] 2012 Plan [Member]	Mar. 19, 2012 Reorganization Adjustments [Member]	Mar. 19, 2014 Scenario, Forecast [Member]
Capital Stock Distribution [Line Items]
Common stock, shares authorized		500,000,000							500,000,000
Preferred stock, shares authorized		5,000,000
Preferred stock, par value		$ 0.00001
Common stock, par value		$ 0.00001							$ 0.00001
Common stock, shares issued		201,842,351	201,156,078						200,000,000
Number convertible preferred stock issued		0	0				1,000,000
Purchase price of convertible preferred stock maximum limit							$ 11,100,000
Warrants to purchase in aggregate, shares		61,400,000
Warrants to purchase common stock					30,700,000	30,700,000
Warrants to purchase Common stock, exercise price					1.32	1.43
Amount of restricted share grants		700,000	550,000	0.0
Unamortized value of unvested restricted share grant		706,000	407,000	0
Stock-based compensation		$ 401,000	$ 143,000	$ 0
Award vesting period		3 years
Award vesting rights		1/3 per year
Number of shares vested	385,364	385,364
Number of shares expected to vest										614,117
Number of shares, forfeited										0
Per share of unvested shares of common stock		$ 0.0001
Unvested shares		1,456,987	1,156,078
Common stock, shares outstanding		201,842,351	201,156,078						200,000,000
Preferred stock, shares outstanding		0	0
Additional shares of common stock reserved								1,000,000
Common stock issued to directors								250,000