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2. Inventories (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
RepaymentsOfBorrowingsUnderShortTermFacilities    
Raw materials $ 1,465 $ 1,219
Work-in-progress 1,638 1,807
Finished goods 879 1,778
Total inventory $ 3,982 $ 4,804