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Note 23 - Subsequent Events (Details Textual) - USD ($)
1 Months Ended 6 Months Ended
May. 15, 2016
May. 31, 2016
Apr. 30, 2016
Apr. 30, 2015
Oct. 31, 2015
Subsequent Event [Member] | The 7.5% 2016 Notes [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member]          
Repayments of Senior Debt $ 86,500,000        
Debt Instrument, Interest Rate, Stated Percentage 7.50%        
Subsequent Event [Member]          
Proceeds from Sale of Land and Contribution of Land to Joint Venture   $ 75.10      
The 7.5% 2016 Notes [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member]          
Debt Instrument, Interest Rate, Stated Percentage     7.50%   7.50%
Repayments of Senior Debt     $ 175,040,000 $ 2,062,000