ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011
Accumulated Other Comprehensive Gain (Loss) Net Of Tax [Abstract]
Unrealized gain (loss) on available-for-sale securities	$ (26)	$ 13
Net unrealized loss on retirement plan	(5,573)		(5,870)
Total	$ (5,599)	$ (5,857)