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Stock Option Activity (Detail) - $ / shares
 2 Months Ended 12 Months Ended
Mar. 31, 2014
Mar. 31, 2015
Jan. 31, 2014
Shares      
Beginning balance 735,800 628,700  
Granted 0 162,000  
Cancelled (88,767) (14,200)  
Exercised 0 0  
Expired 0 0  
Forfeited (18,333) 0  
Ending balance 628,700 776,500 735,800
Vested and exercisable   658,306  
Weighted Average Per Share Exercise Price      
Beginning balance $ 1.7 $ 2  
Granted 0 10  
Cancelled 2.3 0  
Exercised 0 0  
Expired 0 0  
Forfeited 2.1 0  
Ending balance $ 2 4.69 $ 1.7
Vested and exercisable   $ 2.2  
Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Remaining Contractual Term Abstract      
Balance 8 years 8 months 12 days 7 years 4 months 24 days 9 years
Granted      
Cancelled 7 years 10 months 24 days    
Exercised      
Expired      
Forfeited 8 years 6 months    
Vested and exercisable   5 years 1 month 6 days  
Weighted Average Per Share Intrinsic Value      
Beginning Balance $ 1.60 $ 1.10  
Granted 0 0  
Cancelled 0 0  
Exercised 0 0  
Expired 0 0  
Forfeited 0 0  
Ending balance $ 1.10 1.50 $ 1.60
Vested and exercisable   $ 2.40