INVENTORIES (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Inventory Disclosure [Abstract]
Raw materials	$ 12,054	$ 10,760
Work-in-process	13,640	11,984
Finished goods	25,468	30,338
Inventories, gross	51,162	53,082
Inventory valuation reserves	(4,636)	(4,665)
Inventories, net	$ 46,526	$ 48,417