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Note 17 - Investments in Unconsolidated Homebuilding and Land Development Joint Ventures (Details Textual)
$ in Thousands
3 Months Ended 6 Months Ended
Apr. 30, 2018
USD ($)
Jan. 31, 2018
USD ($)
Apr. 30, 2017
USD ($)
Jan. 31, 2017
USD ($)
Apr. 30, 2018
USD ($)
Apr. 30, 2017
USD ($)
Oct. 31, 2017
USD ($)
Fair Value of Assets Acquired   $ 13,600     $ 13,600    
Number of Owned Communities Transferred to the Joint Venture       1      
Number of Optioned Communities Transferred to the Joint Venture       3      
Proceeds from Transfer of Land to Joint Venture       $ 11,200      
Revenues, Total $ 502,544   $ 585,935   $ 919,710 $ 1,137,944  
Joint Venture Total Debt to Capitalization Ratio 59.00%       59.00%    
Homebuilding [Member]              
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Total $ 88,344       $ 88,344   $ 115,090
Revenues, Total 489,490   571,441   895,768 1,110,601  
Homebuilding [Member] | Management Fees [Member]              
Revenues, Total 2,900   $ 3,000   4,900 $ 5,100  
Corporate Joint Venture [Member]              
Advances to Affiliate $ 5,200       $ 5,200   $ 22,400
Joint Venture Total Debt to Capitalization Ratio 59.00%       59.00%   51.00%
Corporate Joint Venture [Member] | Homebuilding [Member]              
Joint Venture Impairment Charge         $ 700