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ACCRUED WARRANTY (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Beginning balance $ 2,236 $ 2,750
Accruals for warranties issued during the period 6,911 2,597
Settlements made during the period (5,454) (3,111)
Changes in liability for pre-existing warranties during the period (92)  
Ending balance $ 3,601 $ 2,236