CONDENSED STATEMENTS OF CASH FLOWS (USD $) In Thousands	6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010
Operating Activities
Net income	$ 18,759	$ 16,501
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation	5,860	4,419
Slow moving inventory valuation adjustment	(176)	(314)
Stock-based compensation	1,247	908
Loss ( Gain ) on sale of assets	(7)	10
Deferred income taxes	1,111	1,920
Changes in operating assets and liabilities:
Trade receivables	(292)	2,666
Inventories	5,954	1,061
Trade accounts payable and accrued expenses	2,298	(2,946)
Employee compensation and benefits	(580)	(4,334)
Product liability	135	(896)
Prepaid expenses, other assets and other liabilities	(3,434)	1,296
Income taxes payable	1,499	(1,160)
Cash provided by operating activities	32,374	19,131
Investing Activities
Property, plant and equipment additions	(7,719)	(12,598)
Proceeds from sale of assets	16	16
Purchases of short-term investments	(47,496)	(76,977)
Proceeds from maturities of short-term investments	35,496	74,736
Cash used for investing activities	(19,703)	(14,823)
Financing Activities
Tax benefit from exercise of stock options	1,441	698
Repurchase of common stock	(1,999)
Payment of employee withholding tax related to share-based compensation	(2,432)	(1,367)
Dividends paid	(2,775)	(2,940)
Cash used for financing activities	(5,765)	(3,609)
Increase in cash and cash equivalents	6,906	699
Cash and cash equivalents at beginning of period	5,132	5,008
Cash and cash equivalents at end of period	$ 12,038	$ 5,707