Consolidated Balance Sheets - USD ($) $ in Thousands	Jan. 03, 2020	Dec. 28, 2018
Current assets:
Cash and cash equivalents	$ 176,436	$ 127,059
Short-term investments	55,165	81,495
Accounts receivable, net of allowance for contract losses and doubtful accounts of $4,295 and $4,066, respectively	120,138	105,814
Prepaid expenses and other current assets	12,305	12,244
Total current assets	364,044	326,612
Property, equipment and leasehold improvements, net	61,587	46,103
Operating lease right-of-use asset	23,003
Goodwill	8,607	8,607
Deferred income taxes	36,821	34,090
Deferred compensation plan assets	68,400	52,286
Other assets	949	1,238
Total assets	563,411	468,936
Current liabilities:
Accounts payable and accrued liabilities	18,583	12,283
Accrued payroll and employee benefits	86,723	76,855
Deferred revenues	12,710	9,166
Operating lease liability	5,944
Total current liabilities	123,960	98,304
Other liabilities	2,669	2,548
Deferred compensation plan liabilities	68,373	52,708
Deferred rent		1,467
Operating lease liability	18,158
Total liabilities	213,160	155,027
Commitments and contingencies (Note 13)
Stockholders’ equity:
Preferred stock, $0.001 par value; 2,000 shares authorized; no shares outstanding	0	0
Common stock, $0.001 par value; 120,000 shares authorized; 65,707 shares issued	66	66
Additional paid-in capital	244,935	227,283
Accumulated other comprehensive income/(loss)
Investment securities, available for sale	302	(45)
Foreign currency translation adjustments	(2,062)	(2,808)
Accumulated other comprehensive income (loss)	(1,760)	(2,853)
Retained earnings	384,668	342,024
Treasury stock, at cost: 13,951 and 14,208 shares held, respectively	(277,658)	(252,611)
Total stockholders’ equity	350,251	313,909
Total liabilities and stockholders’ equity	$ 563,411	$ 468,936