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RESTRICTED CASH (Details) - Restrictions on Cash and Cash Equivalents - USD ($)
$ in Thousands
Sep. 30, 2021
Jun. 30, 2021
Sep. 30, 2020
Jun. 30, 2020
Restrictions on Cash and Cash Equivalents [Abstract]        
Cash and cash equivalents $ 19,755 $ 14,436    
Restricted cash 1,000 1,000    
Total cash, cash equivalents, and restricted cash $ 20,755 $ 15,436 $ 3,623 $ 2,961