Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
NET INCOME (LOSS)	$ (927)	$ 986	$ (4,654)
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Unrealized loss on interest rate swaps	(476)	(412)	(484)
Reclassification of loss into earnings from interest rate swaps	98	268	560
Amortization of unrealized loss on dedesignated interest rate swaps	289	93	0
Unrecognized net actuarial gain on postretirement benefit plans	20	67	2
Reclassification of net actuarial gain into earnings from postretirement benefit plans	(27)	(18)	(59)
Reclassification of prior service credits into earnings from postretirement benefit plans	(54)	(55)	(54)
TOTAL OTHER COMPREHENSIVE LOSS, NET OF TAX	(150)	(57)	(35)
COMPREHENSIVE INCOME (LOSS)	$ (1,077)	$ 929	$ (4,689)