CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 24, 2022	Sep. 30, 2023	Sep. 24, 2022
Statement of Comprehensive Income [Abstract]
NET LOSS		$ (2,394)	$ (8,780)	$ (5,878)	$ (16,624)
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Reclassification of gain into earnings from interest rate swaps	[1]	0	0	0	(7)
Income taxes		0	0	0	(2)
Reclassification of gain into earnings from interest rate swaps, net		0	0	0	(5)
Reclassification of unrealized loss into earnings from dedesignated interest rate swaps	[2]	0	0	0	210
Income taxes		0	0	0	33
Reclassification of unrealized loss into earnings from dedesignated interest rate swaps, net		0	0	0	177
Reclassification of net actuarial gain into earnings from postretirement benefit plans	[2]	(5)	0	(16)	(2)
Income taxes		0	0	0	0
Reclassification of net actuarial gain into earnings from postretirement benefit plans, net		(5)	0	(16)	(2)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX		(5)	0	(16)	170
COMPREHENSIVE LOSS		$ (2,399)	$ (8,780)	$ (5,894)	$ (16,454)

[1] Amounts for cash flow hedges reclassified from accumulated other comprehensive income to net loss were included in interest expense in the Company's consolidated condensed statements of operations.

[2] Amounts for postretirement plans reclassified from accumulated other comprehensive income to net loss were included in selling and administrative expenses in the Company's consolidated condensed statements of operations.