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Inventories
9 Months Ended
Sep. 30, 2014
Inventories Disclosure [Abstract]  
Inventories Disclosure [Text Block]

5. Inventories

Inventories consist of the following:

September 30,December 31,
20142013
(in thousands)
Finished goods$ 9,140 $ 7,039
Work in process 512 752
Raw materials 8,411 7,986
Total$ 18,063 $ 15,777