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Note 13 - Per Share Calculation (Details Textual) - shares
3 Months Ended 9 Months Ended
Jul. 31, 2016
Jul. 31, 2015
Jul. 31, 2016
Jul. 31, 2015
Non Vested Stock and Outstanding Options [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 0 0 0 200,000
Convertible Debt Securities [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 15,200,000 15,200,000 15,200,000 15,200,000
Out of the Money Stock Options [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 6,800,000 3,900,000 7,300,000 3,100,000
Exchangeable Note Unit Rate Stated Percentage 6.00%   6.00%