Share-Based Payments (Details 1) - $ / shares
|
12 Months Ended |
|
Feb. 28, 2019 |
Feb. 28, 2018 |
Feb. 28, 2017 |
| Exercise price |
$ 7.53
|
$ 7.99
|
$ 0.96
|
| Number of stock options, outstanding |
1,962,400
|
2,374,581
|
1,010,000
|
| Number of stock options, exercisable |
1,126,664
|
841,249
|
|
| Weighted average remaining life, outstanding |
6 years 10 months 28 days
|
9 years 18 days
|
|
| Weighted average remaining life, exercisable |
5 years 11 months 26 days
|
7 years 8 months 1 day
|
|
| Stock Option 1 |
|
|
|
| Exercise price |
$ .80
|
$ 0.80
|
|
| Number of stock options, outstanding |
582,081
|
602,081
|
|
| Weighted average remaining life, outstanding |
6 years 9 months 4 days
|
7 years 9 months
|
|
| Stock Option 2 |
|
|
|
| Exercise price |
$ 3.00
|
$ 3.00
|
|
| Number of stock options, outstanding |
0
|
12,500
|
|
| Weighted average remaining life, outstanding |
0 years
|
3 months
|
|
| Stock Option 3 |
|
|
|
| Exercise price |
$ 5.25
|
$ 5.25
|
|
| Number of stock options, outstanding |
380,000
|
530,000
|
|
| Weighted average remaining life, outstanding |
8 years 6 months
|
9 years 5 months 26 days
|
|
| Stock Option 4 |
|
|
|
| Exercise price |
$ 8.75
|
$ 8.75
|
|
| Number of stock options, outstanding |
26,693
|
0
|
|
| Weighted average remaining life, outstanding |
10 years
|
0 years
|
|
| Stock Option 5 |
|
|
|
| Exercise price |
$ 11.52
|
$ 11.52
|
|
| Number of stock options, outstanding |
13,209
|
0
|
|
| Weighted average remaining life, outstanding |
9 years 4 months 10 days
|
0 years
|
|
| Stock Option 6 |
|
|
|
| Exercise price |
$ 12.00
|
$ 12.00
|
|
| Number of stock options, outstanding |
700,000
|
700,000
|
|
| Weighted average remaining life, outstanding |
8 years 6 months 14 days
|
9 years 6 months 14 days
|
|
| Stock Option 7 |
|
|
|
| Exercise price |
$ 13.49
|
$ 13.49
|
|
| Number of stock options, outstanding |
193,750
|
250,000
|
|
| Weighted average remaining life, outstanding |
2 months 1 day
|
9 years 7 months 17 days
|
|
| Stock Option 8 |
|
|
|
| Exercise price |
$ 13.89
|
$ 13.89
|
|
| Number of stock options, outstanding |
66,667
|
280,000
|
|
| Weighted average remaining life, outstanding |
4 days
|
9 years 8 months 8 days
|
|