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Inventories (Tables)
 3 Months Ended
Mar. 31, 2016
Inventory Disclosure [Abstract]  
Schedule of inventory, net of reserves
Inventories, net of reserves, as of March 31, 2016 and December 31, 2015 consisted of the following:
 
March 31, 2016
 
December 31, 2015
Current:
 
 
 
Raw materials
$
3,404

 
$
2,735

Finished goods
11,066

 
10,712

 
$
14,470

 
$
13,447

Long-term:
 
 
 
Raw materials
$
438

 
$
375

Finished goods
1,583

 
1,643

 
$
2,021

 
$
2,018
Schedule of Non-Current Inventory Valuation Losses
The following table summarizes the losses incurred on valuation of inventory at lower of cost or market value and write-off of obsolete inventory during the three months ended March 31, 2016 and 2015, respectively.
 
Three months ended March 31,
 
2016
 
2015
Net loss (gain) on valuation of inventory and write-off of obsolete inventory
$
119

 
$
47