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Fair Value Measures (Tables)
 12 Months Ended
May 30, 2020
Fair Value Disclosures [Abstract]  
Schedule Of Assets Measured At Fair Value On A Recurring Basis
In accordance with the fair value hierarchy described above, the following table shows the fair value of our financial assets and liabilities that are required to be measured at fair value on a recurring basis as of May 30, 2020 and June 1, 2019 (in thousands):

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May 30, 2020Level 1Level 2Level 3Balance
Assets
Municipal bonds$—  $16,179  $—  $16,179  
Commercial paper—  6,982  —  6,982  
Corporate bonds—  126,868  —  126,868  
Certificates of deposits—  1,492  —  1,492  
Asset backed securities—  2,642  —  2,642  
Mutual funds2,749  —  —  2,749  
Total assets measured at fair value$2,749  $154,163  $—  $156,912  
June 1, 2019Level 1Level 2Level 3Balance
Assets
US government and agency obligations$—  $30,974  $—  $30,974  
Municipal bonds—  50,353  —  50,353  
Commercial paper—  9,945  —  9,945  
Corporate bonds—  147,162  —  147,162  
Certificates of deposits—  6,148  —  6,148  
Asset backed securities—  5,599  —  5,599  
Mutual funds3,357  —  —  3,357  
Total assets measured at fair value$3,357  $250,181  $—  $253,538