Accounts Payable and Accrued Liabilities (Details) - USD ($) |
Aug. 31, 2021 |
Feb. 28, 2021 |
|---|---|---|
| Accounts Payable and Accrued Liabilities | ||
| Trade accounts payable | $ 3,577,365 | $ 5,082,736 |
| Accrued engineering fees | 96,865 | 535,359 |
| Accrued employee compensation | 765,103 | 970,154 |
| Accrued professional fees | 448,567 | 1,270,628 |
| Other accrued liabilities | 346,467 | 265,988 |
| Accounts payable and accrued liabilities | $ 5,234,367 | $ 8,124,865 |