Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
U.S. operations	$ (9,514)	$ 6,911	$ 5,424
Foreign operations	(2,184)	(208)	0
Income (loss) before income tax expense (benefit)	$ (11,698)	$ 6,703	$ 5,424