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WARRANTY ACCRUAL (Schedule of accrual warranty costs) (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Guarantees and Product Warranties [Abstract]    
Balance at beginning of year $ 221 $ 213
Accruals during the year 177 339
Change in estimates of prior period accruals 54 (27)
Warranty amortization (112) (304)
Balance at end of year $ 340 $ 221