OTHER INCOME (EXPENSE), NET (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 agreement	Dec. 31, 2012	Dec. 31, 2011
OTHER INCOME (EXPENSE), NET
Loss in equity affiliates, including impairment loss	$ (176)	$ (1,741)	$ (530)
Interest income	899	222	32
Change in fair value of put option			732
Other, net	(166)	(69)	54
Total other income (expense), net	$ 557	$ (1,588)	$ 288
Number of put option agreements	3