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AVAILABLE-FOR-SALE SECURITIES - NARRATIVE (Details) - USD ($)
3 Months Ended 9 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2024
Mar. 31, 2023
Jun. 30, 2023
Debt Securities, Available-for-sale [Line Items]          
Available-for-sale securities, credit losses $ 0 $ 0 $ 0 $ 0  
Proceeds from sale of available-for-sale securities 0   4,800,000    
Asset Pledged as Collateral          
Debt Securities, Available-for-sale [Line Items]          
Available-for-sale securities pledged as collateral $ 800,000   $ 800,000   $ 900,000