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Inventories
9 Months Ended
Sep. 30, 2015
Inventories Disclosure [Abstract]  
Inventories Disclosure [Text Block]

6. Inventories

Inventories consist of the following:

September 30,December 31,
20152014
(in thousands)
Finished goods$10,169$10,138
Work in process949946
Raw materials11,8939,447
Total$23,011$20,531