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Investment Securities - Unrealized Gain (Loss) on Investments (Details) - USD ($)
$ in Thousands
Nov. 30, 2021
Feb. 28, 2021
Gain (Loss) on Securities [Line Items]    
Marketable Equity Securities $ 1,440 $ 1,777
Investments, Fair Value Disclosure 1,440 1,777
Mutual Funds [Member]    
Gain (Loss) on Securities [Line Items]    
Marketable Equity Securities 1,440 1,777
Investments, Fair Value Disclosure $ 1,440 $ 1,777