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Note 12 - Per Share Calculation (Details Textual) - shares shares in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2018 | Apr. 30, 2017 | Apr. 30, 2018 | Apr. 30, 2017
Exchangeable Note Unit Rate Stated Percentage | 6.00% |  | 6.00% |
Non Vested Stock and Outstanding Options [Member] |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | 3.3 | 4.6 | 3.5 | 4.6
Convertible Debt Securities [Member] |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount |  | 10.0 | 1.7 | 10.1
Out of the Money Stock Options [Member] |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | 5.6 | 4.7 | 4.6 | 4.7

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- Definition Represents the stated percentage of the exchangeable note unit. + References No definition available. + Details
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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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