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Note 1 - Organization, Basis of Presentation, and Summary of Significant Accounting Policies - Components of Other Comprehensive Income (Details)
$ in Thousands
6 Months Ended
Nov. 25, 2018
USD ($)
Balance $ 252,562
Balance 253,573
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]  
Balance 1,148
Unrealized losses on interest rate swap contracts, net of tax effect (13)
Amounts reclassified from OCI
Balance $ 1,135