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9. Stock Compensation (Tables)
9 Months Ended
Dec. 31, 2017
Restricted Stock [Member]  
Share based compensation expense
   Three Months
Ended
December 31,
2017
   Three Months
Ended
December 31,
2016
   Nine Months
Ended
December 31,
2017
   Nine Months
Ended
December 31,
2016
 
Vesting of stock options and restricted stock units  $323,162   $306,159   $887,607   $1,880,150 
Total stock-based compensation expense  $323,162   $306,159   $887,607   $1,880,150 
                     
Weighted average number of common shares outstanding – basic and diluted   14,950,701    7,927,031    10,927,106    7,768,682 
                     
Basic and diluted loss per common share attributable to stock-based compensation expense  $(0.02)  $(0.04)  $(0.08)  $(0.24)
Options vested and expected to vest
   Number of RSUs 
Vested   46,125 
Expected to vest   432,830 
Total   478,955 
Options [Member]  
Options vested and expected to vest
   Number of
Shares
   Weighted
Average
Exercise
Price
   Weighted
Average
Remaining
Contractual
Term in
Years
 
             
Vested   432,047   $10.98    3.64 
Expected to vest   27,000   $1.68    9.46 
Total   459,047           
Schedule of stock options valuation assumptions
Risk free interest rate     2.21%  
Average expected life     10 years  
Expected volatility     92.14%  
Expected dividends     None  
Summary of stock options activity
    Amount     Range of
Exercise Price
    Weighted
Average
Exercise
Price
 
Stock options outstanding at March 31, 2017     432,047       $3.80-$20.50        $10.98  
Exercised                  
Granted     27,000       $1.68       $1.68  
Cancelled/Expired                  
Stock options outstanding at December 31, 2017     459,047       $1.68-$20.50       $10.44  
Stock options exercisable at December 31, 2017     432,047       $3.80-$20.50       $10.98