ACCRUED LIABILITIES (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020
Payables and Accruals [Abstract]
Accrued sales tax	$ 21,114	$ 20,036
Accrued compensation and related sales commissions	3,350	2,757
Operating lease liabilities - current	1,097	1,075
Accrued professional fees	1,427	924
Income taxes payable	93	123
Accrued other taxes and filing fees	218	220
Accrued other, including settlement of shareholder class action lawsuit	1,581	5,130
Total accrued expenses	$ 28,880	$ 30,265