INVENTORIES (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Inventory Disclosure [Abstract]
Raw materials	$ 10,245	$ 10,760
Work-in-process	14,130	11,984
Finished goods	22,767	30,338
Inventories, gross	47,142	53,082
Inventory valuation reserves	(4,582)	(4,665)
Inventories, net	$ 42,560	$ 48,417