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Inventories
6 Months Ended
Jun. 30, 2015
Inventory Disclosure [Abstract]  
Inventories
Inventories:

Inventories are stated at the lower of cost (first‑in, first‑out) or market and include material, labor and manufacturing overhead. When required, provisions are made to reduce excess and obsolete inventories to their estimated net realizable value. Inventories consist of the following (in thousands):
 
June 30,
2015
 
December 31,
2014
 
 
 
 
Purchased materials
$
263

 
$
402

Work-in-process
19

 

Finished goods
2,644

 
2,841

 
$
2,926

 
$
3,243