Share-Based Payments (Details 1) - $ / shares
|
9 Months Ended |
|
|
Nov. 30, 2019 |
Nov. 30, 2018 |
Feb. 28, 2019 |
Feb. 28, 2018 |
| Exercise price |
$ 6.55
|
$ 8.29
|
$ 7.53
|
$ 7.99
|
| Number of stock options, outstanding |
1,657,081
|
2,205,290
|
1,962,400
|
2,374,581
|
| Number of stock options, exercisable |
1,007,498
|
1,065,414
|
|
|
| Weighted average remaining life, outstanding |
7 years 1 month 28 days
|
7 years 2 months 19 days
|
|
|
| Weighted average remaining life, exercisable |
7 years 1 month 10 days
|
7 years 7 months 13 days
|
|
|
| Stock Option 1 |
|
|
|
|
| Exercise price |
$ .80
|
$ .80
|
|
|
| Number of stock options, outstanding |
577,081
|
582,081
|
|
|
| Weighted average remaining life, outstanding |
6 years
|
7 years
|
|
|
| Stock Option 2 |
|
|
|
|
| Exercise price |
$ 3.00
|
$ 3.00
|
|
|
| Number of stock options, outstanding |
0
|
0
|
|
|
| Weighted average remaining life, outstanding |
0 years
|
0 years
|
|
|
| Stock Option 3 |
|
|
|
|
| Exercise price |
$ 5.25
|
$ 5.25
|
|
|
| Number of stock options, outstanding |
380,000
|
380,000
|
|
|
| Weighted average remaining life, outstanding |
7 years 8 months 27 days
|
8 years 8 months 27 days
|
|
|
| Stock Option 4 |
|
|
|
|
| Exercise price |
$ 8.75
|
$ 8.75
|
|
|
| Number of stock options, outstanding |
0
|
0
|
|
|
| Weighted average remaining life, outstanding |
0 years
|
0 years
|
|
|
| Stock Option 5 |
|
|
|
|
| Exercise price |
$ 11.52
|
$ 11.52
|
|
|
| Number of stock options, outstanding |
0
|
13,209
|
|
|
| Weighted average remaining life, outstanding |
0 years
|
9 years 7 months 10 days
|
|
|
| Stock Option 6 |
|
|
|
|
| Exercise price |
$ 12.00
|
$ 12.00
|
|
|
| Number of stock options, outstanding |
700,000
|
700,000
|
|
|
| Weighted average remaining life, outstanding |
7 years 9 months 15 days
|
8 years 9 months 15 days
|
|
|
| Stock Option 7 |
|
|
|
|
| Exercise price |
$ 13.49
|
$ 13.49
|
|
|
| Number of stock options, outstanding |
0
|
250,000
|
|
|
| Weighted average remaining life, outstanding |
0 years
|
8 years 10 months 17 days
|
|
|
| Stock Option 8 |
|
|
|
|
| Exercise price |
$ 13.89
|
$ 13.89
|
|
|
| Number of stock options, outstanding |
0
|
280,000
|
|
|
| Weighted average remaining life, outstanding |
0 years
|
25 days
|
|
|