Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2015	Oct. 03, 2014	Oct. 02, 2015	Oct. 03, 2014
Revenues:
Revenues before reimbursements	$ 74,503	$ 74,264	$ 225,916	$ 219,562
Reimbursements	4,491	4,293	13,235	11,531
Revenues	78,994	78,557	239,151	231,093
Operating expenses:
Compensation and related expenses	42,853	43,948	139,745	138,855
Other operating expenses	6,766	6,715	19,979	19,482
Reimbursable expenses	4,491	4,293	13,235	11,531
General and administrative expenses	3,963	4,363	11,538	11,809
Total operating expenses	58,073	59,319	184,497	181,677
Operating income	20,921	19,238	54,654	49,416
Other income, net:
Interest income, net	47	33	115	117
Miscellaneous income, net	(2,195)	(896)	367	2,605
Total other income, net	(2,148)	(863)	482	2,722
Income before income taxes	18,773	18,375	55,136	52,138
Income taxes	7,054	7,335	21,387	20,680
Net income	$ 11,719	$ 11,040	$ 33,749	$ 31,458
Net income per share:
Basic	$ 0.44	$ 0.41	$ 1.27	$ 1.16
Diluted	$ 0.43	$ 0.40	$ 1.23	$ 1.13
Shares used in per share computations:
Basic	26,597	26,938	26,644	27,018
Diluted	27,268	27,648	27,350	27,778
Cash dividends declared per common share	$ 0.150	$ 0.125	$ 0.450	$ 0.375