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EMPLOYEE BENEFIT PLANS - Additional Information (Details) - USD ($)
3 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Jun. 30, 2022
Employee Stock Ownership Plan (ESOP), Number of Committed-to-be-Released Shares per year 255,648    
ESOP loan balance $ 2,600,000    
Debt Instrument, Term 25 years    
FourHundredAndOne K Plan [Member]      
Defined contribution plan, Employer matching contribution, Percent of employees gross pay 3.00%    
Defined contribution plan, Employer discretionary contribution amount $ 5,600 $ 11,000  
FourHundredAndOne K Plan [Member] | Maximum [Member]      
Defined contribution plan, Voluntary contributions by Employees, Percent 15.00%    
Defined contribution plan, Employer matching contribution, Percent of match 10.00%    
FourHundredAndOne K Plan [Member] | Minimum [Member]      
Defined contribution plan, Voluntary contributions by Employees, Percent 2.00%    
Pension Plan [Member]      
Defined benefit plan, Service cost $ 195,000 195,000  
Supplemental Employee Retirement Plan [Member]      
Liability, Defined benefit plan 830,000   $ 814,000
Pension and other postretirement benefits, Expenses 16,000 16,000  
Postretirement Life Insurance [Member] | Split Dollar Agreements [Member]      
Cash surrender value of life insurance 4,432,000   4,411,000
Other Postretirement Benefits Plan [Member] | Split Dollar Agreements [Member]      
Pension and other postretirement benefits, Expenses 29,000 $ 16,000  
Postretirement Life Insurance In Connection With SERPs [Member]      
Cash surrender value of life insurance $ 5,775,000   $ 5,733,000
Tax-Qualified Retirement Plan [Member]      
Employee Stock Ownership Plan (ESOP), Number of Committed-to-be-Released Shares per year 10,226