Consolidated Condensed Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands		3 Months Ended
		Mar. 28, 2020	Mar. 30, 2019
NET LOSS		$ (2,689)	$ (6,672)
OTHER COMPREHENSIVE LOSS, NET OF TAX:
Unrealized loss on interest rate swaps		(1,137)	(399)
Income taxes		0	0
Unrealized loss on interest rate swaps, net		(1,137)	(399)
Reclassification of loss into earnings from interest rate swaps (1)	[1]	208	56
Income taxes		0	10
Reclassification of loss into earnings from interest rate swaps, net		208	46
Reclassification of net actuarial gain into earnings from postretirement benefit plans (2)	[2]	(7)	(7)
Income taxes		0	0
Reclassification of net actuarial gain into earnings from postretirement benefit plans, net		(7)	(7)
Reclassification of prior service credits into earnings from postretirement benefit plans (2)	[2]	(1)	(1)
Income taxes		0	0
Reclassification of prior service credits into earnings from postretirement benefit plans, net		(1)	(1)
TOTAL OTHER COMPREHENSIVE LOSS, NET OF TAX		(937)	(361)
COMPREHENSIVE LOSS		$ (3,626)	$ (7,033)

[1] Amounts for cash flow hedges reclassified from accumulated other comprehensive loss 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 loss to net loss were included in selling and administrative expenses in the Company's Consolidated Condensed Statements of Operations.