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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 6 Months Ended
Oct. 31, 2015
Nov. 01, 2014
Oct. 31, 2015
Nov. 01, 2014
Recognized in AOCI:        
(Loss) gain before income taxes $ (2,094) $ 643 $ (7,064) $ 1,248
Less income tax (benefit) provision (777) 239 (2,621) 463
Net (1,317) 404 (4,443) 785
Reclassified from AOCI to cost of sales:        
(Loss) gain before income taxes (2,446) 263 (3,837) 277
Less income tax (benefit) provision (907) 98 (1,423) 103
Net (1,539) 165 (2,414) 174
Net change to AOCI $ 222 $ 239 $ (2,029) $ 611