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Loss Per Share | 9 Months Ended
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Jul. 31, 2018
Earnings Per Share [Abstract] |
Loss Per Share | Note 13. Loss Per Share The calculation of basic and diluted loss per share was as follows:
|  | Three Months Ended July 31, |  |  | Nine Months Ended July 31, |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Numerator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  | $ | (15,881 | ) |  | $ | (17,001 | ) |  | $ | (33,238 | ) |  | $ | (43,924 | )
Series C preferred stock deemed dividends |  |  | (939 | ) |  |  | — |  |  |  | (8,601 | ) |  |  | — |
Series B preferred stock dividends |  |  | (800 | ) |  |  | (800 | ) |  |  | (2,400 | ) |  |  | (2,400 | )
Net loss attributable to common stockholders |  | $ | (17,620 | ) |  | $ | (17,801 | ) |  | $ | (44,239 | ) |  | $ | (46,324 | )
Denominator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average basic common shares |  |  | 86,297,481 |  |  |  | 57,420,050 |  |  |  | 79,292,240 |  |  |  | 45,903,033 |
Effect of dilutive securities (1) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Weighted average diluted common shares |  |  | 86,297,481 |  |  |  | 57,420,050 |  |  |  | 79,292,240 |  |  |  | 45,903,033 |
Basic loss per share |  | $ | (0.20 | ) |  | $ | (0.31 | ) |  | $ | (0.56 | ) |  | $ | (1.01 | )
Diluted loss per share (1) |  | $ | (0.20 | ) |  | $ | (0.31 | ) |  | $ | (0.56 | ) |  | $ | (1.01 | )
(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 antidilutive. As of July 31, 2018 and 2017, potentially dilutive securities excluded from the diluted loss per share calculation are as follows:
|  | July 31, |  |  | July 31, |
|  | 2018 |  |  | 2017 |
May 2017 Offering - Series C Warrants |  |  | 11,569,364 |  |  |  | 12,000,000 |
May 2017 Offering - Series D Warrants |  |  | — |  |  |  | 10,622,460 |
July 2016 Offering - Series A Warrants |  |  | 7,680,000 |  |  |  | 7,680,000 |
Outstanding options to purchase common stock |  |  | 323,533 |  |  |  | 316,330 |
Unvested Restricted Stock Awards |  |  | 1,164,248 |  |  |  | 2,004,330 |
Unvested Restricted Stock Units |  |  | 3,281,744 |  |  |  | 1,130,015 |
Series C Preferred Shares to satisfy conversion requirements (1) |  |  | 6,348,401 |  |  |  | — |
5% Series B Cumulative Convertible Preferred Stock |  |  | 454,043 |  |  |  | 454,043 |
Series 1 Preferred Shares to satisfy conversion requirements |  |  | 15,168 |  |  |  | 15,168 |
Total potentially dilutive securities |  |  | 30,836,501 |  |  |  | 34,222,346 |
(1) | The number of shares of common stock issuable upon conversion of the Series C Preferred Stock was calculated using the stated value outstanding on July 31, 2018 of $11.7 million (original stated value of $33.5 million less the stated value of conversions to date through July 31, 2018 totaling $21.8 million) divided by the conversion price of $1.84. The actual number of shares issued could vary depending on the actual market price of the Company’s common shares on the date of such conversions. Refer also to Note 19, “Subsequent Events” for information regarding the reduction of the conversion price of the Series C Preferred Stock subsequent to July 31, 2018.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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