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Earnings Per Share | 12 Months Ended
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Oct. 31, 2018
Earnings Per Share [Abstract] |
Earnings Per Share | Note 18. Earnings Per Share Basic earnings (loss) per common share (“EPS”) are generally calculated as income (loss) available to common stockholders divided by the weighted average number of common shares outstanding. Diluted EPS is generally calculated as income (loss) available to common stockholders divided by the weighted average number of common shares outstanding plus the dilutive effect of common share equivalents. The calculation of basic and diluted EPS for the years ended October 31, 2018, 2017 and 2016 was as follows (amounts in thousands, except share and per share amounts):
|  | 2018 |  |  | 2017 |  |  | 2016 |
Numerator |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  | $ | (47,334 | ) |  | $ | (53,903 | ) |  | $ | (51,208 | )
Net loss attributable to noncontrolling interest |  |  | — |  |  |  | — |  |  |  | 251 |
Series B Preferred stock dividends |  |  | (3,200 | ) |  |  | (3,200 | ) |  |  | (3,200 | )
Series C Preferred stock deemed dividends |  |  | (9,559 | ) |  |  | — |  |  |  | — |
Series D Preferred stock redemption accretion |  |  | (2,075 | ) |  |  | — |  |  |  | — |
Net loss to common stockholders |  | $ | (62,168 | ) |  | $ | (57,103 | ) |  | $ | (54,157 | )
Denominator |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding - basic |  |  | 82,754,268 |  |  |  | 49,914,904 |  |  |  | 29,773,700 |
Effect of dilutive securities (1) |  |  | — |  |  |  | — |  |  |  | — |
Weighted average common shares outstanding - diluted |  |  | 82,754,268 |  |  |  | 49,914,904 |  |  |  | 29,773,700 |
Net loss to common stockholders per share - basic |  | $ | (0.75 | ) |  | $ | (1.14 | ) |  | $ | (1.82 | )
Net loss to common stockholders per share - diluted (1) |  | $ | (0.75 | ) |  | $ | (1.14 | ) |  | $ | (1.82 | )
(1) | Due to the net loss to common stockholders in each of the years presented above, diluted earnings per share was computed without consideration to potentially dilutive instruments as their inclusion would have been antidilutive. As of October 31, 2018, 2017 and 2016, potentially dilutive securities excluded from the diluted loss per share calculation are as follows:
|  | October 31, 2018 |  |  | October 31, 2017 |  |  | October 31, 2016 |
May 2017 Offering – Series C Warrants |  |  | 11,569,364 |  |  |  | 11,580,900 |  |  |  | — |
May 2017 Offering – Series D Warrants |  |  | - |  |  |  | 2,584,174 |  |  |  | — |
July 2016 Offering - Series A Warrants |  |  | 7,680,000 |  |  |  | 7,680,000 |  |  |  | 7,680,000 |
July 2016 Offering - Series B Warrants |  |  | — |  |  |  | — |  |  |  | 3,826,000 |
July 2014 Offering - NRG Warrants |  |  | — |  |  |  | — |  |  |  | 166,666 |
Outstanding options to purchase common stock |  |  | 323,486 |  |  |  | 309,950 |  |  |  | 246,923 |
Unvested RSAs |  |  | 1,119,433 |  |  |  | 1,898,692 |  |  |  | 915,831 |
Unvested RSUs |  |  | 3,251,142 |  |  |  | 1,109,994 |  |  |  | 74,204 |
Series C Preferred Shares to satisfy conversion requirements (1) |  |  | 5,994,667 |  |  |  | 18,097,826 |  |  |  | — |
Series D Preferred Shares to satisfy conversion requirements (2) |  |  | 22,231,884 |  |  |  | — |  |  |  | — |
5% Series B Cumulative Convertible Preferred Stock (3) |  |  | 454,043 |  |  |  | 454,043 |  |  |  | 454,043 |
Series 1 Preferred Shares to satisfy conversion requirements (3) |  |  | 15,168 |  |  |  | 15,168 |  |  |  | 15,168 |
Total potentially dilutive securities |  |  | 52,639,187 |  |  |  | 43,730,747 |  |  |  | 13,378,835 |
(1) | The number of shares of common stock issuable upon conversion of the Series C Preferred Stock was calculated using the liquidation preference value outstanding on October 31, 2018 of $9.0 million divided by the reduced conversion price of $1.50 and the liquidation preference of $33.3 million divided by the conversion price of $1.84 as of October 31, 2017. 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.
(2) | The number of shares of common stock issuable upon conversion of the Series D Preferred Stock was calculated using the liquidation preference value outstanding on October 31, 2018 of $30.7 million divided by the conversion price of $1.38. 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.
(3) | Refer to Note 14, Redeemable Preferred Stock, for information on the calculation of the common shares upon conversion.

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