Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Cash Flows from Operating Activities:
Net income	$ 19,072	$ 15,578
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	2,268	1,953
Provision for doubtful accounts	88	73
Provision for deferred income taxes	(380)	(285)
Provision for non-cash stock compensation	247	237
Changes in assets and liabilities:
Accounts receivable	(12,291)	(15,848)
Inventories	3,398	(1,864)
Prepaids and other current assets	501	111
Other assets	(77)	(54)
Accounts payable	(4,552)	11,313
Accrued compensation and other liabilities	2,307	2,811
Cash provided by operating activities	10,581	14,025
Cash Flows from Investing Activities:
Property, plant and equipment additions	(2,846)	(4,495)
Cash used in investing activities	(2,846)	(4,495)
Cash Flows from Financing Activities:
Proceeds from exercise of stock options	121	69
Other stock related activity	527	70
Purchase and cancellation of common stock	(942)	(284)
Cash used in financing activities	(294)	(145)
Effect of Exchange Rate Changes on Cash and Cash Equivalents		227
Net Increase in Cash and Cash Equivalents	7,441	9,612
Cash and Cash Equivalents, Beginning of Period	27,708	50,196
Cash and Cash Equivalents, End of Period	35,149	59,808
Supplemental Cash Flow Information
Cash paid for interest expense	50	53
Cash paid for income taxes	$ 2,956	$ 1,025