Business Segments and Geographic Area Information - Reconciliation of Reportable Segment Profit or Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Total Profit for Reportable Segments	$ 12,197	$ 6,329
Unallocated Amounts:
Corporate Expenses	(5,508)	(6,514)
Income (Loss) from Continuing Operations before Income Taxes, Domestic	$ 6,689	$ (185)