CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 25, 2022	Jun. 26, 2021	Jun. 25, 2022	Jun. 26, 2021
Income Statement [Abstract]
NET SALES	$ 83,698	$ 89,982	$ 161,273	$ 162,729
Cost of sales	67,642	67,416	130,041	123,290
GROSS PROFIT	16,056	22,566	31,232	39,439
Selling and administrative expenses	18,855	16,894	36,268	32,698
Other operating (income) expense, net	136	33	146	35
Facility consolidation and severance expenses, net	0	71	0	96
OPERATING INCOME (LOSS)	(2,935)	5,568	(5,182)	6,610
Interest expense	1,081	1,242	2,196	2,571
Other income, net	0	0	(1)	(1)
INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE TAXES	(4,016)	4,326	(7,377)	4,040
Income tax provision (benefit)	3	563	(16)	535
INCOME (LOSS) FROM CONTINUING OPERATIONS	(4,019)	3,763	(7,361)	3,505
Loss from discontinued operations, net of tax	(468)	(414)	(483)	(2,184)
NET INCOME (LOSS)	$ (4,487)	$ 3,349	$ (7,844)	$ 1,321
BASIC EARNINGS (LOSS) PER SHARE:
Continuing operations (in dollars per share)	$ (0.26)	$ 0.24	$ (0.48)	$ 0.22
Discontinued operations (in dollars per share)	(0.03)	(0.03)	(0.03)	(0.14)
Net income (loss) (in dollar per share)	$ (0.29)	$ 0.21	$ (0.51)	$ 0.08
Basic shares outstanding (in shares)	15,225	15,119	15,184	15,102
DILUTED EARNINGS (LOSS) PER SHARE:
Continuing operations (in dollars per share)	$ (0.26)	$ 0.24	$ (0.48)	$ 0.22
Discontinued operations (in dollars per share)	(0.03)	(0.03)	(0.03)	(0.14)
Net income (loss) (in dollars per share)	$ (0.29)	$ 0.21	$ (0.51)	$ 0.08
Diluted shares outstanding (in shares)	15,225	15,249	15,184	15,232
DIVIDENDS PER SHARE:
Common stock (in dollars per share)	$ 0	$ 0	$ 0	$ 0
Class B common stock (in dollars per share)	$ 0	$ 0	$ 0	$ 0