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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
OPERATING ACTIVITIES:      
Net income $ 22,472 $ 7,701 $ 14,233
Adjustments to reconcile net income to net cash provided by operating activities, net of effect of acquired businesses:      
Depreciation and amortization 9,942 8,859 7,875
Loss on disposal of property and equipment 54 71 2
Impairment of intangible assets   530  
GNU gain on sale of business assets and subsequent liquidation (258) (250) (3,836)
Deferred rent 3,596 3,171 3,260
Deferred income taxes (829) 1,651 8,399
Share-based compensation expenses 4,819 6,616 6,867
Excess tax benefits from share-based compensation     (393)
Accounts receivable allowances (1,410) 1,739 535
Changes in operating assets and liabilities:      
Accounts receivable (14,427) (13,032) (8,670)
Unbilled services (2,987) (7,640) (219)
Prepaid expenses and other current assets, and other assets 5,502 6,067 (6,439)
Forgivable loans (12,277) 5,641 10,225
Incentive cash awards 3,206 1,319  
Accounts payable, accrued expenses, and other liabilities 18,786 23,415 16,324
Net cash provided by operating activities 36,189 45,858 48,163
INVESTING ACTIVITIES:      
Cash consideration paid for acquisitions   (16,163)  
Purchases of property and equipment (15,447) (9,757) (13,023)
GNU cash proceeds from sale of business assets   250 1,100
Net cash used in investing activities (15,447) (25,670) (11,923)
FINANCING ACTIVITIES:      
Issuance of common stock, principally stock option exercises 2,166 6,420 2,853
Borrowings under line of credit 30,161 11,500 7,500
Payments under line of credit (30,161) (11,500) (7,500)
Payments on notes payable     (75)
Tax withholding payments reimbursed by restricted shares (3,946) (3,262) (1,880)
Excess tax benefits from share-based compensation     393
Cash paid on dividend equivalents (256) (121)  
Cash dividends paid to shareholders (5,784) (4,941) (1,166)
Repurchases of common stock (27,884) (19,528) (19,315)
Distribution to noncontrolling interest (43) (419)  
Net cash used in financing activities (35,747) (21,851) (19,190)
Effect of foreign exchange rates on cash and cash equivalents (1,002) 2,168 (1,659)
Net (decrease) increase in cash and cash equivalents (16,007) 505 15,391
Cash and cash equivalents at beginning of period 54,035 53,530 38,139
Cash and cash equivalents at end of period 38,028 54,035 53,530
Noncash investing and financing activities:      
Issuance of common stock for acquired business   3,044 44
Purchases of property and equipment not yet paid for 303 3,514 118
Purchases of property and equipment paid by a third party 133 1,640 92
Asset retirement obligations 223 120 844
Supplemental cash flow information:      
Cash paid for taxes 4,813 7,424 6,184
Cash paid for interest $ 509 $ 314 $ 405