PROPERTY AND EQUIPMENT (Detail Textuals) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 4,210,000	$ 4,148,000	$ 3,834,000
Interest expense	$ 20,000	$ 39,000	$ 113,000