OTHER INCOME , NET Components of Other Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Other Income and Expenses [Abstract]
Interest and investment income	$ 50	$ 26	$ 98	$ 34
Income tax expense	283	(91)	171	(388)
Other non-operating income	745	0	745	10
Total other income (expense), net	$ 1,078	$ (65)	$ 1,014	$ (344)