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Note 7 - Derivative Financial Instruments (Tables)
9 Months Ended
Jan. 26, 2013
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]
   
(In thousands)
 
   
Three Months Ended
   
Nine Months Ended
 
   
2013
   
2012
   
2013
   
2012
 
Recognized in AOCI:
                       
Gain (loss) before income taxes
  $ 735     $ 697     $ (1,408 )   $ (3,239 )
Less income tax provision (benefit)
    272       265       (523 )     (1,169 )
Net
  $ 463     $ 432     $ (885 )   $ (2,070 )
Reclassified from AOCI to cost of sales:
                       
Gain (loss) before income taxes
  $ (242 )   $ (711 )   $ (1,788 )   $ 1,008  
Less income tax provision (benefit)
    (90 )     (270 )     (668 )     342  
Net
  $ (152 )   $ (441 )   $ (1,120 )   $ 666  
Net change to AOCI
  $ 615     $ 873     $ 235     $ (2,736 )