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Income Taxes (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Nov. 28, 2020
Nov. 23, 2019
Nov. 28, 2020
Nov. 23, 2019
May 30, 2020
Income Taxes [Abstract]          
Income tax expense $ 2,256 $ 5,337 $ 4,213 $ 7,978  
Effective tax rate 178.50% 30.20% 76.50% 31.60%  
Unrecognized tax benefits $ 800   $ 800   $ 800