Annual report pursuant to Section 13 and 15(d)

Schedule of Share-based Compensation, Stock Options, Activity (Details)

v3.8.0.1
Schedule of Share-based Compensation, Stock Options, Activity (Details) - $ / shares
12 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2016
Number of shares outstanding, beginning of period 4,145,800 4,653,400  
Weighted average exercise price, beginning of period $ 0.92 $ 0.92  
Weighted average remaining contractual term 8 years 7 years 8 months 12 days 8 years 2 months 12 days
Number of shares, granted 1,790,000 0  
Weighted average exercise price, granted $ 1.29 $ 0  
Weighted average remaining contractual life, granted 9 years 1 month 6 days 7 years 9 months 18 days  
Number of shares, exercised (181,000) (485,000)  
Weighted average exercise price, exercised $ 0.52 $ 0.52  
Weighted average remaining contractual term, exercised 9 years 8 months 12 days 0 years  
Number of shares, expired/forfeited 3,320,800 (192,000)  
Weighted average exercise price, expired/forfeited $ 0.55 $ 0.52  
Weighted average remaining contractual term, expired/forfeited 6 years 10 months 24 days 0 years  
Number of shares outstanding, end of period 2,434,000 4,145,800 4,653,400
Weighted average exercise price, end of period $ 1.09 $ 0.92 $ 0.92
Number of shares, exercisable 1,105,900    
Weighted average exercise price, exercisable $ 0.84    
Weighted average remaining contractual term, exercisable 8 years 4 months 24 days