Income Taxes - Net Operating Loss Carryforwards (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Operating loss carryforwards
Liability for uncertain tax positions	$ 1,625
Unrecognized Tax Benefits	1,625
Tax Years Beginning | Federal
Operating loss carryforwards
Net operating loss carryforwards	$ 5,000	$ 5,300
Carryforward expiration	Jan. 01, 2032