Intangible Assets (Details) - USD ($) |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
May 31, 2021 |
May 31, 2020 |
Feb. 28, 2021 |
|
| Finite-Lived Intangible Assets, Net [Abstract] | |||
| Patents, at cost - beginning of period | $ 859,048 | $ 225,174 | |
| Patents, accumulated depreciation | (64,154) | (22,310) | |
| Patents, net - beginning of period | 794,894 | 202,864 | |
| Additions in the year - patents | 52,319 | 623,811 | |
| Amortization of patents | (16,944) | $ (7,891) | (41,844) |
| Foreign exchange effect | 50,954 | 10,063 | |
| Patents, net - end of period | $ 881,223 | $ 794,894 | |