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BENEFIT PLANS - Additional information (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Nov. 30, 2021
Oct. 31, 2022
Oct. 31, 2021
Oct. 31, 2022
Oct. 31, 2021
BENEFIT PLANS          
Other comprehensive income   $ 77,000 $ 67,000 $ 143,000 $ 133,000
Share-based compensation       87,000 47,000
Board of Directors Chairman          
BENEFIT PLANS          
Non Cash Director Fee Compensation   23,000 22,000 45,000 45,000
Accrued compensation expense related to the deferred stock units   75,000 75,000    
Equity Plan | President and Chief Executive Officer          
BENEFIT PLANS          
Stock option issued during the year 50,000        
Exercise price $ 14.24        
2016 Equity Plan | Board of Directors Chairman          
BENEFIT PLANS          
Non cash compensation expense   12,000   25,000  
Restricted Stock | Equity Plan          
BENEFIT PLANS          
Share-based compensation   51,000 31,000 87,000 47,000
Unrecognized compensation expense related to restricted shares   $ 182,000 $ 137,000 $ 182,000 $ 137,000
Weighted-average remaining vesting period       3 years