v3.8.0.1
Stock-Based Compensation - Schedule of Share-based Compensation, Stock Options Outstanding (Details) - $ / shares
 12 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2016
Shares, Outstanding and expected to vest at end of period 15,346,608    
Shares, Exercisable at period end 11,325,108    
Weighted Average Exercise Price, Exercisable at period end $ 0.65    
Stock Options [Member]      
Shares, Outstanding at beginning of year 15,798,558 13,508,086 11,988,188
Shares, Granted 3,280,000 2,622,500
Shares, Exercised (356,700) (671,028) (1,079,602)
Shares, Forfeited (95,250) (318,500) (23,000)
Shares, Outstanding and expected to vest at end of period 15,346,608 15,798,558 13,508,086
Shares, Exercisable at period end 11,325,108 9,285,121 7,931,813
Weighted Average Exercise Price, Outstanding at beginning of year $ 0.78 $ 0.79 $ 0.58
Weighted Average Exercise Price, Granted 0.91 1.63
Weighted Average Exercise Price, Exercised 0.66 0.37 0.35
Weighted Average Exercise Price, Forfeited 2.01 3.44 4.30
Weighted Average Exercise Price, Outstanding and expected to vest at end of period 0.78 0.78 0.79
Weighted Average Exercise Price, Exercisable at period end 0.65 0.55 0.53
Weighted average fair value of grants during the period $ 0.57 $ 1.07