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Inventories
3 Months Ended
Mar. 31, 2015
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]
10.     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):
 
March 31,
2015
 
December 31,
2014
 
 
 
 
Purchased materials
$
334

 
$
402

Finished goods
2,822

 
2,841

 
$
3,156

 
$
3,243