Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Revenue	$ 48,933	$ 32,652	$ 93,482	$ 77,685
Cost of services	36,667	24,149	70,366	58,339
Gross profit	12,266	8,503	23,116	19,346
Operating costs and expenses
Selling, general and administrative	9,995	8,994	19,064	19,231
Depreciation and amortization of property and equipment	259	246	525	501
Amortization of acquired intangible assets	9	80	89	160
Write-off of receivables and professional fees incurred related to arbitration	0	350	0	8,397
Tax credit professional fees	60	0	120	0
Operating costs and expenses	10,323	9,670	19,798	28,289
Operating income (loss)	1,943	(1,167)	3,318	(8,943)
Other expense (income)
Interest expense and other, net	122	184	243	524
Change in fair value of contingent consideration	26	36	52	72
Loss (gain) on foreign currency transactions	53	13	(82)	46
Other expense, net	201	233	213	642
Income (loss) before income taxes	1,742	(1,400)	3,105	(9,585)
Income tax expense (benefit)	486	(408)	842	(2,648)
Net income (loss)	$ 1,256	$ (992)	$ 2,263	$ (6,937)
Basic net earnings (loss) per share (in dollars per share)	$ 0.11	$ (0.08)	$ 0.20	$ (0.54)
Diluted net earnings (loss) per share (in dollars per share)	$ 0.11	$ (0.08)	$ 0.19	$ (0.54)