Note 1 - Basis of Presentation (Details Textual) $ in Millions	9 Months Ended
Jul. 31, 2018 USD ($)
Reclassification from Notes Payable, Net of Discount, Premium and Debt Issuance Costs and Accrued Interest to Revolving and Term Loan Credit Facilities, Net of Debt Issuance Costs [Member] \| As of October 31, 2017 [Member]
Prior Period Reclassification Adjustment	$ 73
Homebuilding [Member]
Number of Reportable Segments	6

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration