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Note 5 - Derivative Financial Instruments - Derivatives Instruments, Statements of Financial Performance and Financial Position (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jan. 26, 2019
Jan. 27, 2018
Jan. 26, 2019
Jan. 27, 2018
Recognized in AOCI:        
(Loss) gain before income taxes $ (1,937) $ 2,067 $ 5,487 $ 6,623
Less income tax (benefit) provision (463) 731 1,313 2,421
Net (1,474) 1,336 4,174 4,202
Reclassified from AOCI to cost of sales:        
(Loss) gain before income taxes (305) 844 13,225 1,237
Less income tax (benefit) provision (73) 289 3,053 435
Net (232) 555 10,172 802
Reclassified tax effects to provision for income taxes 0 515 0 515
Net change to AOCI $ (1,242) $ 1,296 $ (5,998) $ 3,915