INVENTORIES (Details) (USD $)	Jun. 30, 2012	Dec. 31, 2011
INVENTORIES
Raw materials	$ 47,954,000	$ 46,399,000
Work in process	7,139,000	6,926,000
Finished goods	41,664,000	35,919,000
Inventories, Net	96,757,000	89,244,000
Inventory reserves for obsolescence and other estimated losses	$ 7,300,000	$ 7,700,000