Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 1,529	$ 1,061	$ 1,061
Expected amortization expense for year one	1,200
Expected amortization expense for year two	1,200
Expected amortization expense for year three	1,200
Expected amortization expense for year four	1,200
Expected amortization expense for year five	$ 600