Share-Based Payments (Details) - $ / shares |
6 Months Ended | |
|---|---|---|
Aug. 31, 2019 |
Aug. 31, 2018 |
|
| Share-based Payment Arrangement [Abstract] | ||
| Number of options outstanding, beginning | 1,962,400 | 2,374,581 |
| Number of options, granted | 0 | 13,209 |
| Number of options, exercised | (5,000) | (20,000) |
| Number of options, forfeited | (39,902) | (100,000) |
| Number of options, expired | (260,417) | (62,500) |
| Number of options outstanding, ending | 1,657,081 | 2,205,290 |
| Number of options outstanding, exercisable | 958,748 | 931,248 |
| Weighted average exercise price outstanding, beginning | $ 7.53 | $ 7.99 |
| Weighted average exercise price, granted | 0.00 | 11.52 |
| Weighted average exercise price, exercised | 0.80 | 0.80 |
| Weighted average exercise price, forfeited | 9.67 | 5.25 |
| Weighted average exercise price, expired | 13.59 | 4.80 |
| Weighted average exercise price outstanding, ending | 6.55 | 8.29 |
| Weighted average exercise price outstanding, exercisable | $ 6.26 | $ 6.98 |