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10. Warrants (Tables) - Warrants [Member]
3 Months Ended
Jun. 30, 2016
Warrant activity
   Amount   Range of
Exercise
Price
   Weighted
Average
Exercise
Price
 
Warrants outstanding at March 31, 2016   2,164,094    $2.10 - $15.00   $6.68 
Issued   30,000    $5.00   $5.00 
Warrants outstanding at June 30, 2016   2,194,094    $2.10 - $15.00   $5.38 
Warrants exercisable at June 30, 2016   2,194,094    $2.10 - $15.00   $5.38 
Assumptions used
Risk free interest rate 0.70%  
Average expected life    3.5 years
Expected volatility      91.5%
Expected dividends  None