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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 6 Months Ended
Jul. 04, 2015
Jun. 28, 2014
Operating activities:    
Net income $ 6,101 $ 6,475
Adjustments to reconcile net income to net cash used in operating activities, net of effect of acquired businesses:    
Depreciation and amortization 3,231 3,138
Loss on disposal of property and equipment 16 9
Deferred rent 3,564 (1,455)
Deferred income taxes 31 871
Share-based compensation expenses 2,998 2,616
Excess tax benefits on share-based compensation (87)  
Gain on extinguishment of debt (606)  
Accounts receivable allowances 530 (1,411)
Changes in operating assets and liabilities:    
Accounts receivable (694) (5,087)
Unbilled services (4,534) (3,534)
Prepaid expenses and other current asset, and other assets (1,524) 1,722
Accounts payable, accrued expenses, and other liabilities (25,590) (18,514)
Net cash used in operating activities (16,564) (15,170)
Investing activities:    
Consideration paid for acquisitions, net   (1,537)
Purchase of property and equipment (8,492) (1,358)
Collections on notes receivable 1,560  
Payments on notes receivable (40) 14
Net cash used in investing activities (6,972) (2,881)
Financing activities:    
Issuance of common stock, principally stock option exercises 105  
Payments on notes payable (300) (26)
Borrowings under line of credit 4,000  
Repayments under line of credit (4,000)  
Tax withholding payments reimbursed by restricted shares (111) (143)
Excess tax benefits from share-based compensation 87  
Repurchase of common stock (7,968) (5,355)
Net cash used in financing activities (8,187) (5,524)
Effect of foreign exchange rates on cash and cash equivalents (660) (62)
Net decrease in cash and cash equivalents (32,383) (23,637)
Cash and cash equivalents at beginning of period 48,199 51,251
Cash and cash equivalents at end of period 15,816 27,614
Noncash investing and financing activities:    
Issuance of common stock for acquired business 42 427
Purchases of property and equipment not yet paid for 2,998  
Supplemental cash flow information:    
Cash paid for income taxes 5,000 8,600
Cash paid for interest $ 162 $ 189