Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014
Operating activities:
Net income	$ 8,914	$ 9,664
Adjustments to reconcile net income to net cash (used in) provided by operating activities, net of effect of acquired businesses:
Depreciation and amortization	4,782	4,748
Loss on disposal of property and equipment	16	9
Deferred rent	4,976	(1,739)
Deferred income taxes (benefit) provision	(339)	967
Share-based compensation expenses	4,403	4,123
Excess tax benefits on share-based compensation	(87)
Gain on extinguishment of debt	(606)
Accounts receivable allowances	562	(2,655)
Changes in operating assets and liabilities:
Accounts receivable	(3,153)	8,515
Unbilled services	(8,612)	(4,037)
Prepaid expenses and other current asset, and other assets	(770)	(302)
Accounts payable, accrued expenses, and other liabilities	(14,950)	(8,541)
Net cash (used in) provided by operating activities	(4,864)	10,752
Investing activities:
Consideration paid for acquisitions, net		(1,537)
Purchase of property and equipment	(12,696)	(3,175)
Collections on notes receivable	1,554	114
Payments on notes receivable	(77)
Net cash used in investing activities	(11,219)	(4,598)
Financing activities:
Issuance of common stock, principally stock option exercises	602
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	(127)	(159)
Excess tax benefits from share-based compensation	87
Repurchase of common stock	(10,810)	(11,927)
Net cash used in financing activities	(10,548)	(12,112)
Effect of foreign exchange rates on cash and cash equivalents	(565)	(609)
Net decrease in cash and cash equivalents	(27,196)	(6,567)
Cash and cash equivalents at beginning of period	48,199	51,251
Cash and cash equivalents at end of period	21,003	44,684
Noncash investing and financing activities:
Issuance of common stock for acquired business	42	427
Purchases of property and equipment not yet paid for	3,858
Purchases of property and equipment paid by a third party	1,343
Supplemental cash flow information:
Cash paid for income taxes	8,227	12,608
Cash paid for interest	240	$ 287
Securities received from a customer for settlement of accounts receivable	$ 192