Stockholders' Equity (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
May 31, 2021 |
May 31, 2020 |
|
| Beginning balance, amount | $ 32,824,524 | $ 38,463,708 |
| Issuance of shares upon vesting of restricted stock units (Note 13), amount | 0 | 0 |
| Ending balance, amount | $ 20,874,332 | $ 35,452,406 |
| Common Stock | ||
| Beginning balance, shares | 42,413,691 | 39,910,774 |
| Beginning balance, amount | $ 4,242 | $ 3,992 |
| Issuance of shares upon vesting of restricted stock units (Note 13), shares | 19,629 | 6,131 |
| Issuance of shares upon vesting of restricted stock units (Note 13), amount | $ 2 | $ 1 |
| Ending balance, shares | 42,433,320 | 39,916,905 |
| Ending balance, amount | $ 4,244 | $ 3,993 |