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Inventories (Tables)
 12 Months Ended
Dec. 31, 2014
Inventory Disclosure [Abstract]  
Schedule of Inventories, Net of Valuation Allowances
Inventories consisted of the following (in thousands):
 
December 31,
 
2014
 
2013
Finished goods
$
23,765

 
$
14,259

Parts and components
1,131

 
1,565

 
$
24,896

 
$
15,824