Income Taxes - Income Tax Expense (Benefit) from Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current
Federal	$ 5,684	$ 6,677	$ 8,298
Foreign	388	504	(277)
State and local	641	943	(234)
Current Income Tax Expense (Benefit)	6,713	8,124	7,787
Deferred
Federal	(413)	(368)	(1,208)
Foreign	(57)	783	(710)
State and local	227	(730)	(747)
Deferred Income Tax Expense (Benefit)	$ (243)	$ (315)	$ (2,665)