Consolidated Condensed Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 24, 2016	Sep. 30, 2017	Sep. 24, 2016
NET INCOME (LOSS)		$ (558)	$ 534	$ (59)	$ (2,556)
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Unrealized gain (loss) on interest rate swaps		(57)	24	(360)	(2,648)
Income taxes		(22)	9	(137)	(1,006)
Unrealized gain (loss) on interest rate swaps, net		(35)	15	(223)	(1,642)
Reclassification of loss into earnings from interest rate swaps (1)	[1]	288	308	970	891
Income taxes		110	117	369	339
Reclassification of loss into earnings from interest rate swaps, net		178	191	601	552
Reclassification of net actuarial gain into earnings from postretirement benefit plans (2)	[2]	(8)	(10)	(24)	(30)
Income taxes		(3)	(4)	(9)	(12)
Reclassification of net actuarial gain into earnings from postretirement benefit plans, net		(5)	(6)	(15)	(18)
Reclassification of prior service credits into earnings from postretirement benefit plans (2)	[2]	(1)	(1)	(3)	(3)
Income taxes		0	0	(1)	(1)
Reclassification of prior service credits into earnings from postretirement benefit plans, net		(1)	(1)	(2)	(2)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX		137	199	361	(1,110)
COMPREHENSIVE INCOME (LOSS)		$ (421)	$ 733	$ 302	$ (3,666)

[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 Condensed Statements of Operations.

[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 Condensed Statements of Operations.