Fair Value Measurements (Schedule Of Assets Measured At Fair Value On A Recurring Basis) (Details) (USD $) | Mar. 01, 2014 | Jun. 01, 2013 |
In Thousands, unless otherwise specified |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | $176,667 | | ' | |
Commodity contracts | 910 | | ' | |
Total assets measured at fair value | 177,577 | | 158,930 | |
Contingent consideration | 868 | | 1,250 | |
Total liabilities measured at fair value | 868 | | 1,250 | |
Quoted Prices In Active Markets For Identical Instruments (Level 1) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 1,406 | | ' | |
Commodity contracts | ' | | ' | |
Total assets measured at fair value | 1,406 | | 1,026 | |
Contingent consideration | ' | | ' | |
Total liabilities measured at fair value | ' | | ' | |
Significant Other Observable Inputs (Level 2) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 175,261 | | ' | |
Commodity contracts | 910 | | ' | |
Total assets measured at fair value | 176,171 | | 157,904 | |
Significant Unobservable Inputs (Level 3) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | ' | | ' | |
Commodity contracts | ' | | ' | |
Total assets measured at fair value | ' | | ' | |
Contingent consideration | 868 | | 1,250 | |
Total liabilities measured at fair value | 868 | | 1,250 | |
State Municipal Bonds [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 69,488 | | 61,195 | |
State Municipal Bonds [Member] | Quoted Prices In Active Markets For Identical Instruments (Level 1) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | ' | | ' | |
State Municipal Bonds [Member] | Significant Other Observable Inputs (Level 2) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 69,488 | | 61,195 | |
State Municipal Bonds [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | ' | | ' | |
US Government Obligations [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 4,060 | | 12,377 | |
US Government Obligations [Member] | Quoted Prices In Active Markets For Identical Instruments (Level 1) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | ' | | ' | |
US Government Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 4,060 | | 12,377 | |
US Government Obligations [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | ' | | ' | |
Corporate Bonds [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 82,358 | | 64,383 | |
Corporate Bonds [Member] | Quoted Prices In Active Markets For Identical Instruments (Level 1) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | ' | | ' | |
Corporate Bonds [Member] | Significant Other Observable Inputs (Level 2) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 82,358 | | 64,383 | |
Corporate Bonds [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | ' | | ' | |
Commercial Paper [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 9,697 | | ' | |
Commercial Paper [Member] | Quoted Prices In Active Markets For Identical Instruments (Level 1) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | ' | | ' | |
Commercial Paper [Member] | Significant Other Observable Inputs (Level 2) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 9,697 | | ' | |
Commercial Paper [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | ' | | ' | |
Certificates Of Deposit [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 1,838 | | 12,285 | |
Certificates Of Deposit [Member] | Quoted Prices In Active Markets For Identical Instruments (Level 1) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | ' | | ' | |
Certificates Of Deposit [Member] | Significant Other Observable Inputs (Level 2) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 1,838 | | 12,285 | |
Certificates Of Deposit [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | ' | | ' | |
Government Agency Bonds [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 5,820 | | 7,664 | |
Government Agency Bonds [Member] | Quoted Prices In Active Markets For Identical Instruments (Level 1) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | ' | | ' | |
Government Agency Bonds [Member] | Significant Other Observable Inputs (Level 2) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 5,820 | | 7,664 | |
Government Agency Bonds [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | ' | | ' | |
Variable Rate Demand Notes [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 2,000 | [1] | ' | |
Variable Rate Demand Notes [Member] | Quoted Prices In Active Markets For Identical Instruments (Level 1) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | ' | [1] | ' | |
Variable Rate Demand Notes [Member] | Significant Other Observable Inputs (Level 2) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 2,000 | [1] | ' | |
Variable Rate Demand Notes [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | ' | [1] | ' | |
Mutual Funds [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 1,406 | [1] | 1,026 | [1] |
Mutual Funds [Member] | Quoted Prices In Active Markets For Identical Instruments (Level 1) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | 1,406 | [1] | 1,026 | [1] |
Mutual Funds [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | | ' | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | | ' | |
Investment securities available-for-sale | ' | [1] | ' | [1] |
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[1] | The mutual funds are classified as long term and are a part of bother investmentsb in the Condensed Consolidated Balance Sheet. |