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Loss Per Share (Tables) | 3 Months Ended
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Jan. 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] | As of January 31, 2017 and 2016, potentially dilutive securities excluded from the diluted loss per share calculation are as follows:
| January 31, 2017 |  | January 31, 2016
July 2016 Offering - Series A Warrants | 7,680,000 |  |  | — |
July 2014 Offering - NRG Warrants | 166,666 |  |  | 166,666 |
Outstanding options to purchase common stock | 245,820 |  |  | 253,815 |
Unvested Restricted Stock Awards | 904,041 |  |  | 451,088 |
5% Series B Cumulative Convertible Preferred Stock | 454,043 |  |  | 454,043 |
Series 1 Preferred Shares to satisfy conversion requirements | 2,385,001 |  |  | 655,569 |
Total potentially dilutive securities | 11,835,571 |  |  | 1,981,181 |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | The calculation of basic and diluted loss per share was as follows:
| Three Months Ended January 31, |
| 2017 |  | 2016 |
Numerator |  |  |  |
Net loss | $ | (13,685 | ) |  | $ | (11,779 | ) |
Net loss attributable to noncontrolling interest | — |  |  | 67 |  |
Preferred stock dividend | (800 | ) |  | (800 | ) |
Net loss attributable to common shareholders | $ | (14,485 | ) |  | $ | (12,512 | ) |
Denominator |  |  |  |
Weighted average basic common shares | 37,613,216 |  |  | 26,246,271 |  |
Effect of dilutive securities (1) | — |  |  | — |  |
Weighted average diluted common shares | 37,613,216 |  |  | 26,246,271 |  |
Basic loss per share | $ | (0.39 | ) |  | $ | (0.48 | ) |
Diluted loss per share (1) | $ | (0.39 | ) |  | $ | (0.48 | ) |
(1) | Due to the net loss to common shareholders in each of the periods presented above, diluted loss per share was computed without consideration to potentially dilutive instruments as their inclusion would have been antidilutive. As of January 31, 2017 and 2016, potentially dilutive securities excluded from the diluted loss per share calculation are as follows:
| January 31, 2017 |  | January 31, 2016
July 2016 Offering - Series A Warrants | 7,680,000 |  |  | — |
July 2014 Offering - NRG Warrants | 166,666 |  |  | 166,666 |
Outstanding options to purchase common stock | 245,820 |  |  | 253,815 |
Unvested Restricted Stock Awards | 904,041 |  |  | 451,088 |
5% Series B Cumulative Convertible Preferred Stock | 454,043 |  |  | 454,043 |
Series 1 Preferred Shares to satisfy conversion requirements | 2,385,001 |  |  | 655,569 |
Total potentially dilutive securities | 11,835,571 |  |  | 1,981,181 |
Refer to Note 12, Redeemable Preferred Stock, which is included in our Annual Report on Form 10-K for the year ended October 31, 2016 for information on the calculation of the common shares upon conversion.

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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