Share-Based Payments (Tables)
 3 Months Ended
May 31, 2019
Share-based Payment Arrangement [Abstract]  
Stock option activity
  2019   2018
  Number of stock options   Weighted average exercise price   Number of stock options   Weighted average exercise price
Outstanding, beginning of period 1,962,400   $ 7.53   2,374,581   $ 7.99
Granted -     -   -     -
Exercised -     -   (20,000)     0.80
Forfeited (10,010)     8.75   (100,000)     5.25
Expired (260,417)     13.89   -     -
Outstanding, end of period 1,691,973   $ 6.60   2,254,581   $ 8.17
Exercisable, end of period 914,998   $ 6.10   926,249   $ 6.61
Stock options outstanding
  2019   2018
Exercise price Number of stock options outstanding   Weighted average remaining life (yrs.)   Number of stock options outstanding   Weighted average remaining life (yrs.)
$0.80 582,081   6.51   582,081   7.50
$3.00 -   -   12,500   0.01
$5.25 380,000   8.24   430,000   8.19
$8.75 16,683   0.04   -   -
$11.52 13,209   0.04   -   -
$12.00 700,000   8.29   700,000   9.29
$13.49 -   -   250,000   9.38
$13.89 -   -   280,000   9.44
Outstanding, end of period 1,691,973   7.52   2,254,581   8.60
Exercisable, end of period 914,998   7.54   926,249   7.96
RSU activity
  2019   2018
  Number of units   Weighted average fair value price   Number of units   Weighted average fair value price
Outstanding, beginning of period 402,868   $ 8.77     34,102   $ 13.00
Granted 25,145             9.79   24,450     12.23
Issued as common stock (7,043)     12.16   (35,797)     13.06
Forfeited (17,203)     8.75   -     -
Outstanding, end of period 403,767   $ 8.73   22,755   $ 12.07
Outstanding vested, end of period 5,000     12.32   -     -