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Segment Information (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Jul. 31, 2017
Oct. 31, 2016
Jul. 31, 2016
Jul. 31, 2017
Jul. 31, 2016
Segment Reporting Information [Line Items]          
Operating Income (Loss), Total $ 13,168,000   $ 14,194,000 $ 16,141,000 $ 10,075,000
Real Estate Development And Sales [Member]          
Segment Reporting Information [Line Items]          
Reclassification Of Real Estate Development To Property Plant And Equipment   $ 26,779,000      
Operating Income (Loss), Total $ 416,000   565,000 $ 1,210,000 1,562,000
Windfall Investors, LLC [Member] | Real Estate Development And Sales [Member]          
Segment Reporting Information [Line Items]          
Operating Income (Loss), Total     $ 135,000   $ 507,000