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Inventories (Tables)
 12 Months Ended
Dec. 31, 2015
Inventory Disclosure [Abstract]  
Schedule of Inventories, Net of Valuation Allowances
Inventories consisted of the following (in thousands):
 
December 31,
 
2015
 
2014
Finished goods
$
39,115

 
$
23,765

Parts and components
3,614

 
1,131

 
$
42,729

 
$
24,896