00100 - Statement - Balance Sheets link:presentationLink link:calculationLink link:definitionLink 00200 - Statement - Statements Of Income link:presentationLink link:calculationLink link:definitionLink 00300 - Statement - Statements of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 00400 - Statement - Statements Of Cash Flows link:presentationLink link:calculationLink link:definitionLink 40401 - Disclosure - Net Income Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 40503 - Disclosure - Marketable Securities (Amortized Cost And Approximate Fair Values Of Marketable Securities) (Details) link:presentationLink link:calculationLink link:definitionLink 40504 - Disclosure - Marketable Securities (Gross Unrealized Losses And Fair Values Of Investments By Investment Category And Length Of Time) (Details) link:presentationLink link:calculationLink link:definitionLink 40601 - Disclosure - Inventories (Details) link:presentationLink link:calculationLink link:definitionLink 00090 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 00105 - Statement - Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 10101 - Disclosure - Description Of Business link:presentationLink link:calculationLink link:definitionLink 10201 - Disclosure - Interim Financial Information link:presentationLink link:calculationLink link:definitionLink 10301 - Disclosure - Recent Accounting Pronouncements link:presentationLink link:calculationLink link:definitionLink 10401 - Disclosure - Net Income Per Share link:presentationLink link:calculationLink link:definitionLink 10501 - Disclosure - Marketable Securities link:presentationLink link:calculationLink link:definitionLink 10601 - Disclosure - Inventories link:presentationLink link:calculationLink link:definitionLink 10701 - Disclosure - Stock-Based Compensation link:presentationLink link:calculationLink link:definitionLink 10801 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 10901 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 11001 - Disclosure - Stock Repurchase Plan link:presentationLink link:calculationLink link:definitionLink 30403 - Disclosure - Net Income Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 30503 - Disclosure - Marketable Securities (Tables) link:presentationLink link:calculationLink link:definitionLink 30603 - Disclosure - Inventories (Tables) link:presentationLink link:calculationLink link:definitionLink 40501 - Disclosure - Marketable Securities (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40502 - Disclosure - Marketable Securities (Fair Value Of Marketable Securities By Maturity) (Details) link:presentationLink link:calculationLink link:definitionLink 40701 - Disclosure - Stock-Based Compensation (Details) link:presentationLink link:calculationLink link:definitionLink 40901 - Disclosure - Fair Value Measurements (Details) link:presentationLink link:calculationLink link:definitionLink 41001 - Disclosure - Stock Repurchase Plan (Details) link:presentationLink link:calculationLink link:definitionLink