CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
OPERATING ACTIVITIES:
Net income	$ 20,747	$ 22,472	$ 7,701
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	10,606	9,942	8,859
Loss on disposal of property and equipment	42	54	71
Impairment of intangible assets			530
GNU gain on sale of business assets and subsequent liquidation		(258)	(250)
Deferred rent and facility related liabilities	117	3,596	3,171
Right-of-use asset amortization	10,662
Deferred income taxes	(1,159)	(829)	1,651
Share-based compensation expenses	3,461	4,819	6,616
Accounts receivable allowances	47	(1,410)	1,739
Changes in operating assets and liabilities:
Accounts receivable	(12,759)	(14,427)	(13,032)
Unbilled services, net	(352)	(2,987)	(7,640)
Prepaid expenses and other current assets, and other assets	(2,120)	5,502	6,067
Forgivable loans	(16,331)	(12,277)	5,641
Incentive cash awards	4,839	3,206	1,319
Accounts payable, accrued expenses, and other liabilities	16,194	18,786	23,415
Lease liabilities	(6,162)
Net cash provided by operating activities	27,832	36,189	45,858
INVESTING ACTIVITIES:
Cash consideration paid for acquisitions			(16,163)
Purchases of property and equipment	(16,693)	(15,447)	(9,757)
GNU cash proceeds from sale of business assets			250
Net cash used in investing activities	(16,693)	(15,447)	(25,670)
FINANCING ACTIVITIES:
Issuance of common stock, principally stock options exercises	3,211	2,166	6,420
Borrowings under revolving line of credit	54,000	30,161	11,500
Payments under line of credit	(54,000)	(30,161)	(11,500)
Tax withholding payments reimbursed by shares	(2,176)	(3,946)	(3,262)
Cash paid on dividend equivalents	(246)	(256)	(121)
Cash dividends paid to shareholders	(6,539)	(5,784)	(4,941)
Repurchases of common stock	(18,068)	(27,884)	(19,528)
Distribution to noncontrolling interest		(43)	(419)
Net cash used in financing activities	(23,818)	(35,747)	(21,851)
Effect of foreign exchange rates on cash and cash equivalents	290	(1,002)	2,168
Net (decrease) increase in cash and cash equivalents	(12,389)	(16,007)	505
Cash and cash equivalents at beginning of period	38,028	54,035
Cash and cash equivalents at end of period	25,639	38,028	54,035
Noncash investing and financing activities:
Issuance of common stock for acquired business			3,044
Purchases of property and equipment not yet paid for	4,914	303	3,514
Purchases of property and equipment paid by a third party	156	133	1,640
Asset retirement obligations	428	223	120
Right-of-use assets obtained in exchange for lease obligations	57,827
Right-of-use assets related to the adoption of ASC 842	82,329
Lease liabilities related to the adoption of ASC 842	106,765
Supplemental cash flow information:
Cash paid for taxes	7,590	4,813	7,424
Cash paid for interest	1,157	$ 509	$ 314
Cash paid for amounts included in operating lease liabilities	$ 14,620