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EMPLOYEE BENEFIT PLANS - Stock Options Outstanding, less estimated forfeitures (Details) - USD ($)
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Stock options fully vested and expected to vest:    
Number 17,332 23,332
Weighted average exercise price $ 2.78 $ 2.78
Aggregate intrinsic value (1) $ 83,000 $ 97,000
Weighted average contractual term of options (years) 1 year 3 months 14 days 2 years 3 months 14 days
Stock options fully vested and currently exercisable:    
Number 17,332 23,332
Weighted average exercise price $ 2.78 $ 2.78
Aggregate intrinsic value (1) $ 83,000 $ 97,000
Weighted average contractual term of options (years) 1 year 3 months 14 days 2 years 3 months 14 days