Other Operating (Income) Expenses, net (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Operating Expenses (Income), net [Abstract]
Gain on sale of operating assets	$ (65)	$ (27)	$ (83)
Frozen defined-benefit pension plan (income) expense	(336)	320	(236)
Total other operating (income) expenses, net	$ (401)	$ 293	$ (319)