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FINANCIAL INSTRUMENTS (Narrative) (Details) - USD ($)
$ in Thousands
Jul. 31, 2016
Oct. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Notional amount of contracts $ 119,700 $ 109,600
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]    
Assets    
Derivatives 2,019 1,228
Liabilities    
Derivatives $ 776 $ 1,071