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SIGNIFICANT ACCOUNTING POLICIES AND BASIS OF PRESENTATION (Details 1) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Contingencies    
Commissions payable $ 8.2 $ 7.2
Minimum    
Contingencies    
Basic limited warranty period 1 year  
Extended product warranty period 1 year  
Maximum    
Contingencies    
Basic limited warranty period 2 years  
Extended product warranty period 2 years