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INCOME TAXES - Additional Information (Details) - USD ($)
12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2019
INCOME TAXES      
Federal corporate income tax rate 21.00% 21.00% 21.00%
Base year allowance for loan losses $ 2,200,000 $ 2,200,000  
Unrecognized deferred tax liability $ 528,000 $ 528,000