CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 25, 2021
Statement of Comprehensive Income [Abstract]
NET INCOME (LOSS)		$ (35,079)	$ 1,616
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Unrealized gain on interest rate swaps		0	94
Income taxes		0	0
Unrealized gain on interest rate swaps, net		0	94
Reclassification of loss into earnings from interest rate swaps	[1]	(7)	135
Income taxes		(2)	0
Reclassification of (gain) loss into earnings from interest rate swaps, net		(5)	135
Amortization of unrealized loss on dedesignated interest rate swaps		210	511
Income taxes		33	174
Amortization of unrealized loss on dedesignated interest rate swaps, net		177	337
Unrecognized net actuarial gain on postretirement benefit plans		39	18
Income taxes		0	0
Unrecognized net actuarial gain on postretirement benefit plans, net		39	18
Reclassification of net actuarial gain into earnings from postretirement benefit plans	[2]	(22)	(24)
Income taxes		0	0
Reclassification of net actuarial gain into earnings from postretirement benefit plans, net		(22)	(24)
TOTAL OTHER COMPREHENSIVE INCOME, NET OF TAX		189	560
COMPREHENSIVE INCOME (LOSS)		$ (34,890)	$ 2,176

[1] (1) Amounts for cash flow hedges reclassified from accumulated other comprehensive income (loss) to net income (loss) were included in interest expense in the Company's Consolidated Statements of Operations.

[2] (2)     Amounts for postretirement plans reclassified from accumulated other comprehensive income (loss) to net income (loss) were included in selling and administrative expenses in the Company's Consolidated Statements of Operations.