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Fair Value of Financial Instruments - Additional Information (Detail) (USD $)
0 Months Ended 9 Months Ended
Mar. 29, 2013
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Black Scholes Model [Member]
Class of Warrant or Right [Line Items]        
Fair value assumption, expected volatility       66.00%
Fair value assumption, risk free interest rate       1.00%
Fair value assumption, expected term       5 years
Fair value assumption, expected dividend yield       0.00%
Grant date fair value of the initial warrant valuation   $ 2.56    
Closing market price of common stock $ 3.00      
Number of shares, exercisable right     6,905,576  
Exercise price of warrants     0.37  
Warrant outstanding, number value $ 1,465,000   $ 20,233,338