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PREFERRED STOCK - Preferred Stock Liquidation Preference (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Class of Stock [Line Items]    
Liquidation price (in USD per share) $ 10.00  
Series A Convertible Preferred Stock    
Class of Stock [Line Items]    
For shares outstanding at $10.00 per share $ 4,451 $ 4,451
Cumulative unpaid dividends 17,662 16,996
Preferred stock liquidation preference $ 22,113 $ 21,447