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SIGNIFICANT ACCOUNTING POLICIES - Warranties, Research and Development, Deferred Financing Costs, and Other (Details)
$ in Thousands
12 Months Ended
Jun. 30, 2017
USD ($)
segment
Jun. 30, 2016
USD ($)
Jun. 30, 2015
USD ($)
Jun. 30, 2014
item
Goodwill and Other Intangible Assets        
Impairment of indefinite-lived intangible assets $ 0 $ 0 $ 0  
Product Warranties        
Year within the product warranty term in which insurance coverage begins | item       2
Year within the product warranty term in which insurance coverage ends | item       5
Research and Development        
Research and development expenditures 3,550 3,508 3,027  
Deferred Financing Costs        
Deferred financing costs incurred   300 453  
Amortization of deferred financing costs 361 85 42  
Advertising        
Advertising costs $ 5,201 $ 5,725 $ 5,521  
Repurchase Commitments        
Maximum term of repurchase commitments   2 years 6 months    
Segment Information        
Number of reportable segments | segment 2      
Maximum        
Product Warranties        
Product warranty term 5 years