ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Accumulated other comprehensive loss [Abstract]
Foreign currency translation adjustment	$ 927	$ 646
Unrealized holding (loss) gain on available-for-sale securities, net of taxes of $161 and ($33) as of December 31, 2012 and 2011	256	(62)
Unfunded SERP liability, net of taxes of $(1,151) and $(941) as of December 31, 2012 and 2011	(2,610)	(2,134)
Accumulated other comprehensive loss	(1,427)	(1,550)
Accumulated other comprehensive loss, tax [Abstract]
Unrealized holding gains (losses) on available-for-sale securities, tax	161	(33)
Change in unfunded SERP liability, tax	$ (1,151)	$ (941)