Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Loss from Continuing Operations before Income Taxes, Domestic									$ (4,632)	$ (11,932)	$ (15,592)
Income (loss) from Continuing Operations before Income Taxes, Foreign									711	(1,251)	192
Loss before provision for income taxes	$ (1,135)	$ (1,205)	$ (712)	$ (869)	$ (5,613)	$ (1,057)	$ (5,102)	$ (1,411)	$ (3,921)	$ (13,183)	$ (15,400)