Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 28, 2012	Dec. 30, 2011
Current assets:
Cash and cash equivalents	$ 113,268	$ 84,439
Short-term investments	20,881	25,260
Accounts receivable, net of allowance for contract losses and doubtful accounts of $2,666 and $2,339, respectively	85,361	73,065
Prepaid expenses and other assets	8,277	8,521
Deferred income taxes	7,657	7,293
Total current assets	235,444	198,578
Property, equipment and leasehold improvements, net	27,446	27,215
Goodwill	8,607	8,607
Deferred income taxes	18,359	14,692
Deferred compensation plan assets	24,801	18,911
Other assets	760	785
Total assets	315,417	268,788
Current liabilities:
Accounts payable and accrued liabilities	10,386	6,738
Accrued payroll and employee benefits	54,720	48,089
Deferred revenues	6,665	5,948
Total current liabilities	71,771	60,775
Other liabilities	988	700
Deferred compensation	24,697	18,756
Deferred rent	1,532	1,842
Total liabilities	98,988	82,073
Commitments and contingencies
Stockholders' equity:
Preferred stock, $.001 par value; 5,000 shares authorized; no shares outstanding	0	0
Common stock, $.001 par value; 100,000 shares authorized; 16,427 shares issued	16	16
Additional paid-in capital	123,693	108,071
Accumulated other comprehensive loss
Investment securities, available for sale	24	52
Foreign currency translation adjustments	(274)	(523)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total	(250)	(471)
Retained earnings	206,057	179,432
Treasury stock, at cost: 3,221 and 3,127 shares held, respectively	(113,087)	(100,333)
Total stockholders' equity	216,429	186,715
Total liabilities and stockholders' equity	$ 315,417	$ 268,788