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STOCK BASED COMPENSATION PLANS - Summary of Restricted Stock Outstanding (Details) - Restricted Stock - $ / shares
6 Months Ended 12 Months Ended
Sep. 30, 2022
Mar. 31, 2022
2010 Plan and 2021 Employee Plan    
Number of Shares    
Beginning balance (in shares) 395,993  
Granted (in shares) 199,042  
Vested (in shares) (93,677)  
Forfeited (in shares) (2,500)  
Ending balance (in shares) 498,858 395,993
Weighted Average Fair Value Per Share at grant date    
Beginning balance (in dollars per share) $ 21.48  
Granted (in dollars per share) 21.25  
Vested (in dollars per share) 20.90  
Forfeited (in dollars per share) 23.81  
Ending balance (in dollars per share) $ 21.48 $ 21.48
Weighted Average Remaining Vesting Term (in Years)    
Weighted-average vesting term 2 years 7 months 6 days 2 years 4 months 24 days
Granted 3 years 8 months 12 days  
Non-Employee Director Plan    
Number of Shares    
Beginning balance (in shares) 0  
Granted (in shares) 12,105  
Vested (in shares) 0  
Forfeited (in shares) 0  
Ending balance (in shares) 12,105 0
Weighted Average Fair Value Per Share at grant date    
Beginning balance (in dollars per share) $ 0  
Granted (in dollars per share) 20.66  
Vested (in dollars per share) 0  
Forfeited (in dollars per share) 0  
Ending balance (in dollars per share) $ 20.66 $ 0
Weighted Average Remaining Vesting Term (in Years)    
Weighted-average vesting term 10 months 24 days  
Granted 10 months 24 days