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Common Stock (Details 5) - Equity Option [Member] - $ / shares
 3 Months Ended 12 Months Ended
May 31, 2022
Feb. 28, 2022
Offsetting Assets [Line Items]    
Number of unvested stock option, beginning balance 3,636,500
Unvested stock option,weighted average exercise price, beginning balance $ 6.46
Number of unvested stock option, granted 4,545,500
Unvested stock option,weighted average exercise price, granted $ 6.46
Number of unvested stock option, vested (909,000)
Unvested stock option,weighted average exercise price, vested $ 6.46
Number of unvested stock option, ending balance 3,636,500 3,636,500
Unvested stock option,weighted average exercise price, ending balance $ 6.46 $ 6.46