Condensed Consolidated Statements of Comprehensive (Loss) Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ 1,782	$ 6,619	$ (191)	$ 11,778
Other Comprehensive Loss
Amortization of actuarial losses and prior service costs, net of tax benefit of approximately $68 and $48 for the three months ended July 4, 2015 and June 28, 2014, respectively, and approximately $165 and $84 for the six months ended July 4, 2015 and June 28, 2014, respectively	(153)	(57)	(278)	(126)
Other Comprehensive Loss	(153)	(57)	(278)	(126)
Comprehensive Income	$ 1,935	$ 6,676	$ 87	$ 11,904