Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands		3 Months Ended
		Mar. 27, 2021	Mar. 28, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Loss from continuing operations		$ (1,967)	$ (2,613)
Loss from discontinued operations		(61)	(76)
Net loss		(2,028)	(2,689)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization		2,578	3,034
Provision for deferred income taxes		(64)	0
Net gain on property, plant and equipment disposals		0	(37)
Stock-based compensation expense		71	93
Bad debt expense		0	(35)
Changes in operating assets and liabilities:
Receivables		(2,875)	(1,056)
Inventories		(4,309)	(2,718)
Prepaids and other current assets		1,437	(2,349)
Accounts payable and accrued expenses		7,939	2,154
Other operating assets and liabilities		(1,118)	(597)
NET CASH PROVIDED BY OPERATING ACTIVITIES		1,631	(4,200)
CASH FLOWS FROM INVESTING ACTIVITIES
Net proceeds from sales of property, plant and equipment		0	40
Purchase of property, plant and equipment		(364)	(650)
NET CASH USED IN INVESTING ACTIVITIES		(364)	(610)
CASH FLOWS FROM FINANCING ACTIVITIES
Net (payments) borrowings on revolving credit facility		(354)	1,963
Payments on notes payable - buildings and other term loans		(140)	(104)
Payments on notes payable - equipment and other		(910)	(716)
Payments on finance leases		(781)	(1,151)
Borrowings on finance leases		0	2,220
Change in outstanding checks in excess of cash		578	2,052
Repurchases of Common Stock		(57)	(204)
NET CASH (USED IN) PROVIDED BY FINANCING ACTIVITIES		(1,664)	4,060
DECREASE IN CASH AND CASH EQUIVALENTS		(397)	(750)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD		1,920	769
CASH AND CASH EQUIVALENTS AT END OF PERIOD		1,523	19
SUPPLEMENTAL CASH FLOW INFORMATION:
Interest paid		812	875
Interest paid for financing leases	[1]	391	343
Income taxes paid, net of tax refunds		79	65
Right-of-use assets obtained in exchange for new operating lease liabilities		0	43
Accrued purchases of equipment		$ 238	$ 144

[1] Includes leases classified as failed sale-leaseback transactions.