Quarterly report pursuant to Section 13 or 15(d)

FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS (Details)

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FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2020
FINANCIAL INSTRUMENTS AND SIGNIFICANT CONCENTRATIONS        
Cash, cash equivalents and restricted cash $ 68,416 $ 41,047 $ 31,989 $ 9,955