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ACCRUED WARRANTY (Tables)
12 Months Ended
Jun. 30, 2017
Product Warranties Disclosures [Abstract]  
Warranty obligations
Warranty obligations, included in other current liabilities, were as follows (in thousands):
Balance at June 30, 2015
$
2,750

Accruals for warranties issued during the period
2,597

Settlements made during the period
(3,111
)
Balance at June 30, 2016
2,236

Accruals for warranties issued during the period
6,911

Changes in liability for pre-existing warranties during the period
(92
)
Settlements made during the period
(5,454
)
Balance at June 30, 2017
$
3,601