Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Income Taxes [Abstract]
Income tax expense	$ 119	$ 7	$ 126	$ 9
Expense related to minimum tax payments				2
Net change in valuation allowance	2,707	$ 1,951	7,942	$ 7,520
Valuation allowance carried against net deferred tax assets	38,000		38,000		$ 30,000
Federal [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	69,000		$ 69,000
Operating loss carryforwards, expiration dates			Dec. 31, 2027
State [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 37,000		$ 37,000
Operating loss carryforwards, expiration dates			Dec. 31, 2016