Condensed Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Apr. 04, 2014	Mar. 29, 2013
Revenues:
Revenues before reimbursements	$ 72,967	$ 68,992
Reimbursements	2,995	3,668
Revenues	75,962	72,660
Operating expenses:
Compensation and related expenses	48,858	48,562
Other operating expenses	6,317	6,147
Reimbursable expenses	2,995	3,668
General and administrative expenses	3,698	3,432
Total operating expenses	61,868	61,809
Operating income	14,094	10,851
Other income, net:
Interest income, net	44	45
Miscellaneous income, net	1,227	2,609
Total other income, net	1,271	2,654
Income before income taxes	15,365	13,505
Income taxes	6,211	5,529
Net income	$ 9,154	$ 7,976
Net income per share:
Basic	$ 0.68	$ 0.58
Diluted	$ 0.66	$ 0.56
Shares used in per share computations:
Basic	13,537	13,667
Diluted	13,940	14,125
Cash dividends declared per common share	$ 0.25	$ 0.15