v3.7.0.1
Stock-Based Compensation - Schedule of Share-based Compensation, Stock Options Outstanding (Details) - $ / shares
 12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2015
Shares, Outstanding and expected to vest at end of period 15,798,558    
Shares, Exercisable at period end 9,285,121    
Weighted Average Exercise Price, Exercisable at period end $ 0.55    
Stock Option [Member]      
Shares, Outstanding at beginning of year 13,508,086 11,988,188 11,174,007
Shares, Granted 3,280,000 2,622,500 2,525,000
Shares, Exercised (671,028) (1,079,602) (677,127)
Shares, Forfeited (318,500) (23,000) (1,033,692)
Shares, Outstanding and expected to vest at end of period 15,798,558 13,508,086 11,988,188
Shares, Exercisable at period end 9,285,121 7,931,813 7,064,133
Weighted Average Exercise Price, Outstanding at beginning of year $ 0.79 $ 0.58 $ 0.51
Weighted Average Exercise Price, Granted 0.91 1.63 1.04
Weighted Average Exercise Price, Exercised 0.37 0.35 0.33
Weighted Average Exercise Price, Forfeited 3.44 4.30 1.10
Weighted Average Exercise Price, Outstanding and expected to vest at end of period 0.78 0.79 0.58
Weighted Average Exercise Price, Exercisable at period end 0.55 0.53 0.49
Weighted average fair value of grants during the period $ 0.57 $ 1.07 $ 0.65