Income Taxes - Components of Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current:
Federal	$ 0	$ 145	$ (1,445)
State and local	(645)	(1,130)	(1,593)
NOL utilized	0	0	586
Deferred:
Federal	59	(91)	(595)
State and local	18	(33)	(130)
Benefit (provision) for income taxes	$ (568)	$ (1,109)	$ (3,177)