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