Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
Revenue:
Total revenue	$ 75,664	$ 63,486
Cost of service:
Total cost of service	47,889	41,246
Selling, general and administrative costs (includes $933 and $740 of stock compensation expense in 2022 and 2021, respectively)	14,366	13,387
Total costs and operating expenses	62,255	54,633
Income from operations	13,409	8,853
Other expense:
Interest expense	(28)	(25)
Income from operations before income taxes	13,381	8,828
Income tax expense	2,876	2,460
Income from continuing operations	10,505	6,368
Loss from discontinued operations		(7)
Net income	$ 10,505	$ 6,361
Basic net income per common share:
Income per common share from continuing operations	$ 0.33	$ 0.21
Loss per common share from discontinued operations		0.00
Net income per common share	0.33	0.21
Diluted net income per common share:
Income per common share from continuing operations	0.33	0.19
Loss per common share from discontinued operations		(0.00)
Net income per common share	$ 0.33	$ 0.19
Weighted average common shares outstanding:
Basic	31,449,408	30,207,490
Diluted	31,843,563	32,769,167
Revenue Before Reimbursements [Member]
Revenue:
Total revenue	$ 75,108	$ 63,410
Reimbursements [Member]
Revenue:
Total revenue	556	76
Cost of service:
Total cost of service	556	76
Cost Before Reimbursements [Member]
Cost of service:
Total cost of service	$ 47,333	$ 41,170