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Inventories (Tables)
 12 Months Ended
Dec. 31, 2014
Inventory [Line Items]  
Schedule of Inventory, Current and Non-Current [Table Text Block]
Inventories, net of reserves, consisted of the following:
 
As of December 31,
 
2014
 
2013
Current:
 
 
 
Raw materials
$
3,056

 
$
1,362

Finished goods (including distributor channel inventories)
11,408

 
10,916

 
$
14,464

 
$
12,278

Long-term:
 
 
 
Raw materials
$
59

 
$
227

Finished goods
817

 
324

 
$
876

 
$
551