Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2013	Mar. 30, 2012
Cash flow from operating activities
Net income	$ 4,057	$ 3,360
Adjustments:
Depreciation and amortization expense	631	648
Equity-based compensation expense	546	424
Deferred income taxes	(394)	(301)
Deferred compensation	(8)	96
Changes in assets and liabilities:
(Increase) decrease in accounts receivable	(3,618)	366
Increase in prepaid and other current assets	(633)	(617)
Decrease in other assets	231	285
Decrease in accounts payable	(2,174)	(877)
Decrease in accrued compensation	(5,934)	(6,320)
Increase in income taxes payable	1,676	1,273
Decrease in advance billings on contracts	(376)	(770)
Increase (decrease) in other current liabilities	(1,224)	11
Increase (decrease) in other long-term liabilities	147	(2)
Net cash used in operating activities	(7,073)	(2,424)
Cash flow from investing activities:
Acquisition of business, net of cash received	(2,488)	0
Additions to property and equipment	(675)	(340)
Deferred compensation plan investments, net	(302)	(398)
Net cash used in investing activities	(3,465)	(738)
Cash flow from financing activities:
Proceeds from stock option plan exercises	226	358
Excess tax benefits from equity-based compensation	427	350
Proceeds from Employee Stock Purchase Plan	99	77
Change in cash overdraft, net	389	(207)
Purchase of stock for treasury	0	(863)
Net cash provided by (used in) financing activities	1,141	(285)
Effect of exchange rates on cash and cash equivalents	(472)	298
Net decrease in cash and cash equivalents	(9,869)	(3,149)
Cash and cash equivalents at beginning of year	40,614	22,414
Cash and cash equivalents at end of quarter	$ 30,745	$ 19,265