ShareBased Payments (Details 2) - Restricted Stock Units [Member] - $ / shares |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Aug. 31, 2023 |
Aug. 31, 2022 |
Aug. 31, 2023 |
Aug. 31, 2022 |
|
| Number Of Units Outstanding, Beginning | 4,306,655 | 4,090,775 | 3,888,618 | 4,018,567 |
| Number Of Units, Granted | 115,364 | 66,744 | 585,364 | 151,605 |
| Number of Units, Settled | 51,963 | 12,653 | ||
| Number of Units, Forfeited | (4,331) | (28,801) | (4,331) | (28,801) |
| Number Of Units Outstanding, Ending | 4,417,688 | 4,128,718 | 4,417,688 | 4,128,718 |
| Number Of Units Outstanding Vested, Ending | 1,635,241 | 1,563,497 | 1,635,241 | 1,563,497 |
| Weighted Average Exercise Price Outstanding, Beginning | $ 6.61 | $ 7.37 | $ 7.09 | $ 7.42 |
| Weighted Average Exercise Price, Granted | 3.17 | 4.05 | 2.93 | 5.14 |
| Weighted Average Exercise Price, Settled | 0 | 0 | 8.66 | 13.04 |
| Weighted Average Exercise Price, Forfeited | 8.21 | 8.68 | 8.21 | 8.68 |
| Weighted Average Exercise Price Outstanding, Ending | 6.52 | 7.31 | 6.52 | 7.31 |
| Weighted Average Exercise Price Outstanding Vested, Ending | $ 6.22 | $ 6.29 | $ 6.22 | $ 6.29 |