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Summary of Restricted Stock Award (Detail) - $ / shares
2 Months Ended 12 Months Ended
Mar. 31, 2014
Mar. 31, 2015
Jan. 31, 2014
Schedule Of Share Based Compensation Restricted Stock Units Award Activity [Line Items]      
Shares,Balance, Beginning 3,752,000 3,752,000  
Shares,Granted 0 184,000  
Shares,Released 0 (183,996)  
Shares,Balance, Ending 3,752,000 3,752,004 3,752,000
Vested and exercisable   3,651,675  
Balance, Weighted Average Remaining Vesting Life (Years) 9 months 18 days 1 month 6 days 1 year
Balance, Weighted Average Remaining Vesting Life, Granted      
Balance, Weighted Average Remaining Vesting Life, Released      
Weighted Average Per Share Intrinsic Value, Balance, Beginning $ 0.02 $ 0.02  
Weighted Average Per Share Intrinsic Value, Granted 0 0  
Weighted Average Per Share Intrinsic Value, Released 0 0  
Weighted Average Per Share Intrinsic Value, Balance, Ending 0.02 0.70 $ 0.02
Weighted Average Per Share Fair Value, Balance, Beginning 0.03 0.03  
Weighted Average Per Share Fair Value, Granted 0 0.77  
Weighted Average Per Share Fair Value, Released 0 0  
Weighted Average Per Share Fair Value, Balance, Ending $ 0.03 $ 0.07 $ 0.03