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Fair value measurements (Details 1) (USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Jul. 31, 2013
Reconciliation of contingent consideration  
Beginning Balance $ 3,179
Interest 133
Revalue Adjustment 1,801
Reclassification (4,220)
Ending Balance 893
Salsa Lisa contingent consideration [Member]
  
Reconciliation of contingent consideration  
Beginning Balance 857
Interest 36
Revalue Adjustment   
Ending Balance 893
RFG contingent consideration [Member]
  
Reconciliation of contingent consideration  
Beginning Balance 2,322
Interest 97
Revalue Adjustment 1,801
Reclassification (4,220)
Ending Balance