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Significant Accounting Policies - Fair values of financial assets of the Company (Details) - USD ($)
May 31, 2022
Feb. 28, 2022
Marketable Securities $ 3,398,931 $ 5,867,990
Level 1    
Marketable Securities 3,398,931 5,716,338
Level 2    
Marketable Securities 151,652
Level 3    
Marketable Securities