Summary of Significant Accounting Policies, Other (Expense) Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Other (expense) income [Abstract]
Foreign currency loss	$ (24)	$ (193)
Rental (loss) income-net	(662)	264
Insurance recovery / investment write off	771	(776)
Fair value adjustment contingent consideration	1,130	(90)
Other income	101
Other expense		(5)
Income (expense)	$ 1,316	$ (800)