CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 26, 2022	Mar. 27, 2021
Income Statement [Abstract]
NET SALES	$ 77,575	$ 72,747
Cost of sales	62,399	55,874
GROSS PROFIT	15,176	16,873
Selling and administrative expenses	17,413	15,803
Other operating (income) expense, net	10	2
Facility consolidation and severance expenses, net	0	25
OPERATING INCOME (LOSS)	(2,247)	1,043
Interest expense	1,116	1,329
Other income, net	(1)	(1)
LOSS FROM CONTINUING OPERATIONS BEFORE TAXES	(3,362)	(285)
Income tax benefit	(19)	(28)
LOSS FROM CONTINUING OPERATIONS	(3,343)	(257)
Loss from discontinued operations, net of tax	(14)	(1,771)
NET LOSS	$ (3,357)	$ (2,028)
BASIC EARNINGS (LOSS) PER SHARE:
Continuing operations (in dollars per share)	$ (0.22)	$ (0.02)
Discontinued operations (in dollars per share)	0.00	(0.12)
Net loss (in dollar per share)	$ (0.22)	$ (0.14)
Basic shares outstanding (in shares)	15,141	15,085
DILUTED EARNINGS (LOSS) PER SHARE:
Continuing operations (in dollars per share)	$ (0.22)	$ (0.02)
Discontinued operations (in dollars per share)	0.00	(0.12)
Net loss (in dollars per share)	$ (0.22)	$ (0.14)
Diluted shares outstanding (in shares)	15,141	15,085
DIVIDENDS PER SHARE:
Common stock (in dollars per share)	$ 0	$ 0
Class B common stock (in dollars per share)	$ 0	$ 0