Other Income - Net (Details Textual) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Jan. 31, 2018	Jan. 31, 2017	Oct. 31, 2015
Schedule of Equity Method Investments [Line Items]
Income from Ancillary Businesses, net	$ 2,583	$ 2,235
Land Sales	6,968	144,714
Home Building Joint Venture Metro New York Four [Member]
Schedule of Equity Method Investments [Line Items]
Land Sales		$ 143,300
Equity Method Investment, Ownership Percentage		20.00%
Home Building Joint Venture Metro New York Three [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage			25.00%
Retail Land Sales, Installment Method, Gross Profit, Deferred			$ 9,300
Apartment living [Member]
Schedule of Equity Method Investments [Line Items]
Income from Ancillary Businesses, net	$ 2,300	$ 1,600