Consolidated Condensed Statements of Comprehensive Income (Loss) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
NET INCOME (LOSS)	$ 1,412	$ 102	$ 3,694	$ (512)
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Unrealized loss on interest rate swaps	(418)	(142)	(171)	(465)
Reclassification of loss into earnings from interest rate swaps	52	23	124	71
Amortization of unrealized loss on dedesignated interest rate swaps	0	73	98	219
Reclassification of net actuarial gain into earnings from postretirement benefit plans	(6)	(6)	(18)	(17)
Reclassification of prior service credits into earnings from postretirement benefit plans	(14)	(14)	(41)	(40)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	(386)	(66)	(8)	(232)
COMPREHENSIVE INCOME (LOSS)	$ 1,026	$ 36	$ 3,686	$ (744)