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AVAILABLE-FOR-SALE SECURITIES - NARRATIVE (Details) - USD ($)
3 Months Ended 6 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2023
Dec. 31, 2022
Jun. 30, 2023
Debt Securities, Available-for-sale [Line Items]          
Available-for-sale securities, credit losses $ 0 $ 0 $ 0 $ 0  
Proceeds from sale and repayment of available-for-sale securities 4,800,000 4,800,000 4,800,000 4,800,000  
Available-for-sale securities, realized gain (loss) 0 $ 0 0 $ 0  
Asset Pledged as Collateral          
Debt Securities, Available-for-sale [Line Items]          
Available-for-sale securities pledged as collateral $ 800,000   $ 800,000   $ 900,000