Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 28, 2013	Jun. 29, 2012
Cash flow from operating activities
Net income	$ 8,112	$ 7,483
Adjustments:
Depreciation and amortization expense	1,291	1,304
Equity-based compensation expense	1,219	985
Deferred income taxes	(599)	(376)
Deferred compensation	99	188
Changes in assets and liabilities:
Increase in accounts receivable	(4,147)	(4,646)
Increase in prepaid and other current assets	(721)	(365)
(Increase) decrease in other assets	29	(997)
Increase (decrease) in accounts payable	(2,243)	674
Increase (decrease) in accrued compensation	(1,737)	195
Decrease in income taxes payable	(1,086)	(962)
Increase (decrease) in advance billings on contracts	(806)	10
Increase (decrease) in other current liabilities	(1,662)	94
Increase in other long-term liabilities	95	8
Net cash provided by (used in) operating activities	(2,156)	3,595
Cash flow from investing activities:
Acquisition of business, net of cash received	(2,488)	0
Additions to property and equipment	(1,194)	(621)
Additions to capitalized software	(707)	0
Deferred compensation plan investments, net	(270)	(112)
Net cash used in investing activities	(4,659)	(733)
Cash flow from financing activities:
Proceeds from stock option plan exercises	355	434
Excess tax benefits from equity-based compensation	957	640
Proceeds from Employee Stock Purchase Plan	185	145
Change in cash overdraft, net	880	1,221
Dividends paid	(762)	0
Purchase of stock for treasury	(1,173)	(3,608)
Net cash provided by (used in) financing activities	442	(1,168)
Effect of exchange rates on cash and cash equivalents	(267)	(484)
Net increase (decrease) in cash and cash equivalents	(6,640)	1,210
Cash and cash equivalents at beginning of year	40,614	22,414
Cash and cash equivalents at end of quarter	$ 33,974	$ 23,624