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Note 6 - Derivative Financial Instruments (Tables)
12 Months Ended
May. 02, 2015
Notes Tables  
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]
   
(In thousands)
 
   
Fiscal
   
Fiscal
   
Fiscal
 
   
2015
   
2014
   
2013
 
Recognized in AOCI-
                       
Loss before income taxes
  $ (3,488 )   $ (1,059 )   $ (2,521 )
Less income tax benefit
    (1,294 )     (393 )     (935 )
Net
    (2,194 )     (666 )     (1,586 )
Reclassified from AOCI to cost of sales-
                       
Gain (loss) before income taxes
    248       (2,028 )     (2,060 )
Less income tax provision (benefit)
    92       (752 )     (769 )
Net
    156       (1,276 )     (1,291 )
Net change to AOCI
  $ (2,350 )   $ 610     $ (295 )