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COMMITMENTS AND CONTINGENCIES - Additional Information (Details) - USD ($)
 3 Months Ended 6 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2023
Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]        
Concentration risk, Credit risk, Financial instruments, Off balance sheet risk     Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. The commitments for construction loans and lines of credit may expire without being drawn upon. Therefore, the total commitment amounts do not necessarily represent future cash requirements.  
Operating leases, Future minimum payments due, Next twelve months $ 59,000   $ 59,000  
Operating leases, Future minimum payments, Due in two years 117,000   117,000  
Operating leases, Future minimum payments, Due in three years 117,000   117,000  
Operating leases, Future minimum payments, Due in four years 119,000   119,000  
Operating leases, Future minimum payments, Due in five years 134,000   134,000  
Operating leases, Future minimum payments, Due thereafter 521,000   521,000  
Operating leases, Rent expense $ 37,000 $ 34,000 $ 71,000 $ 68,000
Weighted average remaining lease term for operating leases 8 years 4 months 17 days   8 years 4 months 17 days  
Weighted average discount rate used in the measurement of operating lease liabilities 3.56%   3.56%