Discontinued Operation (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Loss from discontinued operations before income taxes									$ (601)	$ (1,134)	$ (559)
Income tax expense (benefit)									400	(454)	389
Loss from discontinued operations	$ (134)	$ (145)	$ 205	$ (127)	$ (96)	$ (177)	$ (941)	$ (374)	(201)	(1,588)	(170)
Commercial [Member] | Lease Obligations [Member]
Restructuring Reserve [Roll Forward]
Balance				$ 573				$ 831	573	831	1,118
Payments									(273)	(258)	(287)
Balance	$ 300				$ 573				300	573	831
Commercial [Member] | Commercial [Member]
Loss from discontinued operations before income taxes									(601)	(1,134)	(559)
Income tax expense (benefit)									400	(454)	389
Loss from discontinued operations									$ (201)	$ (1,588)	$ (170)