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Loss Per Share (Tables) | 3 Months Ended
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Jan. 31, 2020
Earnings Per Share [Abstract] |
Calculation of Basic and Diluted Loss Per Share | The calculation of basic and diluted loss per share was as follows:
|  | Three Months Ended January 31, |
|  | 2020 |  |  | 2019 |
Numerator |  |  |  |  |  |  |  |
Net loss |  | $ | (40,151 | ) |  | $ | (17,548 | )
Series B preferred stock dividends |  |  | (931 | ) |  |  | (800 | )
Series C preferred stock deemed dividends and redemption value adjustment |  |  | — |  |  |  | (9,005 | )
Series D Preferred stock deemed dividends and redemption accretion |  |  | — |  |  |  | (5,685 | )
Net loss attributable to common stockholders |  | $ | (41,082 | ) |  | $ | (33,038 | )
Denominator |  |  |  |  |  |  |  |
Weighted average basic common shares |  |  | 202,216,493 |  |  |  | 8,321,702 |
Effect of dilutive securities (1) |  |  | — |  |  |  | — |
Weighted average diluted common shares |  |  | 202,216,493 |  |  |  | 8,321,702 |
Basic loss per share |  | $ | (0.20 | ) |  | $ | (3.97 | )
Diluted loss per share (1) |  | $ | (0.20 | ) |  | $ | (3.97 | )
(1) | Due to the net loss to common stockholders 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 anti-dilutive. As of January 31, 2020 and 2019, potentially dilutive securities excluded from the diluted loss per share calculation are as follows:
Schedule of Potentially Dilutive Securities Excluded from the Diluted Loss Per Share Calculation | As of January 31, 2020 and 2019, potentially dilutive securities excluded from the diluted loss per share calculation are as follows:
|  | January 31, |  |  | January 31, |
|  | 2020 |  |  | 2019 |
Orion Warrants |  |  | 8,000,000 |  |  |  | — |
May 2017 Offering - Series C Warrants |  |  | 964,114 |  |  |  | 964,114 |
July 2016 Offering - Series A Warrants |  |  | — |  |  |  | 640,000 |
Outstanding options to purchase common stock |  |  | 24,927 |  |  |  | 26,957 |
Unvested Restricted Stock Awards |  |  | 24,009 |  |  |  | 91,716 |
Unvested Restricted Stock Units |  |  | 176,561 |  |  |  | 283,410 |
Series C Preferred Shares to satisfy conversion requirements (1) |  |  | — |  |  |  | 1,434,331 |
Series D Preferred Shares to satisfy conversion requirements (2) |  |  | — |  |  |  | 1,535,414 |
5% Series B Cumulative Convertible Preferred Stock |  |  | 37,837 |  |  |  | 37,837 |
Series 1 Preferred Shares to satisfy conversion requirements |  |  | — |  |  |  | 1,264 |
Total potentially dilutive securities |  |  | 9,227,448 |  |  |  | 5,015,043 |
(1) | The number of shares of common stock issuable upon conversion of the Series C Convertible Preferred Stock was calculated using the liquidation preference value outstanding on January 31, 2019 of $7.5 million divided by the reduced conversion price of $5.16 per share.
(2) | The number of shares of common stock issuable upon conversion of the Series D Convertible Preferred Stock was calculated using the liquidation preference value outstanding on January 31, 2019 of $25.4 million divided by the conversion price of $16.56 per share.

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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://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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- 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://fasb.org/us-gaap/role/ref/legacyRef -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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