Consolidated Condensed Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
NET INCOME (LOSS)	$ (644)	$ 1,645	$ 3,751	$ 2,282
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Unrealized gain (loss) on interest rate swaps	(645)	235	(1,227)	247
Reclassification of loss into earnings from interest rate swaps	54	50	107	71
Amortization of unrealized loss on dedesignated interest rate swaps	0	30	0	98
Reclassification of net actuarial gain into earnings from postretirement benefit plans	(6)	(6)	(13)	(11)
Reclassification of prior service credits into earnings from postretirement benefit plans	(14)	(14)	(27)	(27)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	(611)	295	(1,160)	378
COMPREHENSIVE INCOME (LOSS)	$ (1,255)	$ 1,940	$ 2,591	$ 2,660