Condensed Consolidated Statements of Income (Loss) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2023	Sep. 30, 2022	Sep. 29, 2023	Sep. 30, 2022
Income Statement [Abstract]
Revenue	$ 71,291	$ 75,002	$ 224,081	$ 247,178
Cost of services	51,824	56,773	163,484	188,604
Gross profit	19,467	18,229	60,597	58,574
Selling, general and administrative expenses	20,071	15,976	60,209	49,949
Operating income (loss)	(604)	2,253	388	8,625
Interest and other income	50	133	250	323
Interest and other expense	545	525	1,339	1,357
Income (loss) before income taxes	(1,099)	1,861	(701)	7,591
Provision (benefit) for income taxes	(228)	759	(15)	2,209
Net income (loss)	$ (871)	$ 1,102	$ (686)	$ 5,382
Net income (loss) per share
Basic	$ (0.06)	$ 0.08	$ (0.05)	$ 0.37
Diluted	$ (0.06)	$ 0.07	$ (0.05)	$ 0.36
Weighted average shares outstanding:
Basic	14,903	14,480	14,813	14,366
Diluted	14,903	15,157	14,813	15,086