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INVENTORIES (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Inventories [Abstract]    
Raw materials $ 10,525 $ 11,461
Work-in-process 17,756 18,147
Finished goods 28,057 27,024
Total 56,338 56,632
Short-term portion 54,131 50,676
Long-term portion $ 2,207 $ 5,956