OTHER INCOME (EXPENSE) , NET Components of Other Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Other Income and Expenses [Abstract]
Interest and investment income	$ 15	$ 14
Income tax expense	(87)	(84)
Other non-operating income	96	0
Total other income (expense), net	$ 24	$ (70)