CONDENSED CONSOLIDATED INCOME STATEMENTS (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
CONDENSED CONSOLIDATED INCOME STATEMENTS (unaudited)
Revenues	$ 115,686	$ 103,871	$ 332,108	$ 308,885
Costs of services (exclusive of depreciation and amortization)	83,805	73,717	233,412	212,813
Selling, general and administrative expenses	22,449	22,293	68,929	67,682
Depreciation and amortization	2,527	2,636	7,696	7,300
Income from operations	6,905	5,225	22,071	21,090
Interest expense, net	(424)	(222)	(954)	(560)
Other income (expense), net	210	(64)	(379)	72
Income before provision for income taxes	6,691	4,939	20,738	20,602
Provision for income taxes	952	1,031	4,754	4,969
Net income	$ 5,739	$ 3,908	$ 15,984	$ 15,633
Net income per share :
Basic (in dollars per share)	$ 0.74	$ 0.48	$ 2.02	$ 1.91
Diluted (in dollars per share)	$ 0.71	$ 0.46	$ 1.94	$ 1.81
Weighted average number of shares outstanding:
Basic (in shares)	7,769	8,048	7,903	8,129
Diluted (in shares)	8,050	8,548	8,205	8,615