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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 9 Months Ended
Oct. 01, 2016
Oct. 03, 2015
Cash flows from operating activities:    
Net income $ 1,974 $ 3,039
Adjustments to reconcile net income to net cash provided by (used in) operating activities:    
Depreciation and amortization 1,177 1,084
Stock-based compensation expense 614 907
Provision for allowance for doubtful accounts (128) 840
Deferred income tax expense 312 373
Changes in assets and liabilities:    
Accounts receivable 8,600 3,272
Prepaid expenses and other current assets 1,847 (45)
Net of transit accounts receivable and payable 864 (2,263)
Accounts payable and accrued expenses (1,746) 251
Accrued payroll and related costs (2,334) (175)
Income taxes payable 948 205
Total adjustments 10,154 4,449
Net cash provided by operating activities 12,128 7,488
Cash flows from investing activities:    
Property and equipment acquired (732) (2,551)
Decrease in deposits 3 18
Payments for business acquired (800)
Net cash used in investing activities (729) (3,333)
Cash flows from financing activities:    
Net repayments under line of credit (9,849) (5,000)
Issuance of stock for employee stock purchase plan 368 373
Exercise of stock options 19
Common stock repurchases (1,828) (508)
Contingent consideration paid (788) (90)
Net cash used in financing activities (12,097) (5,206)
Effect of exchange rate changes on cash and cash equivalents 16 (818)
Decrease in cash and cash equivalents (682) (1,869)
Cash and cash equivalents at beginning of period 985 6,411
Cash and cash equivalents at end of period 303 4,542
Supplemental cash flow information:    
Interest 363 367
Income taxes 113 800
Non-cash investing activities:    
Contingent consideration accrued as part of business acquisition $ 746