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2. Inventories, net (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Inventories Net Details    
Finished goods $ 4,316 $ 3,981
Work in process 6,278 4,671
Raw materials 2,751 3,496
Total Inventory $ 13,345 $ 12,148