Research and Development Expenses (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Nov. 30, 2021 |
Nov. 30, 2020 |
Nov. 30, 2021 |
Nov. 30, 2020 |
|
| Research and development expenses | $ 6,835,304 | $ 6,274,283 | $ 20,757,937 | $ 10,504,093 |
| Employee Compensation [Member] | ||||
| Research and development expenses | 1,786,765 | 1,214,434 | 5,365,581 | 3,094,151 |
| External Engineering [Member] | ||||
| Research and development expenses | 1,585,512 | 2,224,910 | 5,040,342 | 3,241,959 |
| Plant and Laboratory Operating Expenses [Member] | ||||
| Research and development expenses | 665,893 | 515,395 | 2,064,403 | 1,385,892 |
| Other [Member] | ||||
| Research and development expenses | 197,376 | 5,996 | 579,729 | 456,551 |
| Machinery and Equipment [Member] | ||||
| Research and development expenses | $ 2,599,758 | $ 2,325,540 | $ 7,707,882 | $ 2,325,540 |