Annual report pursuant to Section 13 and 15(d)

Share-Based Compensation - Summary of Non-Employee Stock Option Activity (Detail)

v2.4.0.8
Share-Based Compensation - Summary of Non-Employee Stock Option Activity (Detail) (Non-Employee Stock Options [Member], USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Non-Employee Stock Options [Member]
    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares, Outstanding, Beginning balance 416,000   
Number of shares, Granted    416,000
Number of shares, Exercised      
Number of shares, Forfeited      
Number of shares, Outstanding, Ending Balance 416,000 416,000
Number of shares, Vested or expected to vest 416,000  
Number of shares, Exercisable 128,000 24,000
Weighted average exercise price, Outstanding $ 0.52   
Weighted average exercise price, Granted    $ 0.52
Weighted average exercise price, Exercised      
Weighted average exercise price, Forfeited      
Weighted average exercise price, Outstanding $ 0.52 $ 0.52
Weighted average exercise price, Outstanding, Vested or expected to vest $ 0.52  
Weighted Average Exercise Price, Outstanding, Exercisable $ 0.48 $ 0.31
Weighted-average remaining life (years), Outstanding 5 years 10 months 24 days  
Weighted-average remaining life (years), Vested or expected to vest 5 years 10 months 24 days  
Weighted-average remaining life (years), Exercisable 4 years 4 months 17 days 4 years 8 months 23 days
Aggregate intrinsic value, Outstanding $ 49  
Aggregate intrinsic value, Vested or expected to vest 49  
Aggregate intrinsic value, Exercisable $ 49 $ 0