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Note 19 - Fair Value of Financial Instruments - Changes in Fair Values Included in Income (Loss) (Details) - Financial Services Revenue Line Item [Member] - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Apr. 30, 2017
Apr. 30, 2016
Apr. 30, 2017
Apr. 30, 2016
Loans Held for Sale [Member]        
Changes in fair value included in net loss all reflected in financial services revenues $ 645 $ (1,178) $ (2,379) $ 3,829
Interest Rate Lock Commitments [Member]        
Changes in fair value included in net loss all reflected in financial services revenues 109 (377) 179 30
Forward Contracts [Member]        
Changes in fair value included in net loss all reflected in financial services revenues $ (422) $ 593 $ (391) $ (550)