Income Taxes (Details Textual) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Loss from Continuing Operations before Income Taxes, Domestic									$ (15,592)	$ (14,358)	$ (13,614)
Income (loss) from Continuing Operations before Income Taxes, Foreign									192	(70)	652
Loss from Continuing Operations	$ (2,456)	$ (7,193)	$ (3,166)	$ (2,585)	$ (1,482)	$ (3,397)	$ (1,446)	$ (8,103)	$ (15,400)	$ (14,428)	$ (12,962)