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Earnings Per Share | 12 Months Ended
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Oct. 31, 2017
Earnings Per Share [Abstract] |
Earnings Per Share | Note 17. 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, 2017, 2016 and 2015 was as follows (amounts in thousands, except share and per share amounts):
|  | 2017 |  |  | 2016 |  |  | 2015 |
Numerator |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  | $ | (53,903 | ) |  | $ | (51,208 | ) |  | $ | (29,684 | )
Net loss attributable to noncontrolling interest |  |  | — |  |  |  | 251 |  |  |  | 325 |
Preferred stock dividend |  |  | (3,200 | ) |  |  | (3,200 | ) |  |  | (3,200 | )
Net loss attributable to common stockholders |  | $ | (57,103 | ) |  | $ | (54,157 | ) |  | $ | (32,559 | )
Denominator |  |  |  |  |  |  |  |  |  |  |  |
Weighted average basic common shares |  |  | 49,914,904 |  |  |  | 29,773,700 |  |  |  | 24,513,731 |
Effect of dilutive securities (1) |  |  | — |  |  |  | — |  |  |  | — |
Weighted average diluted common shares |  |  | 49,914,904 |  |  |  | 29,773,700 |  |  |  | 24,513,731 |
Basic loss per share |  | $ | (1.14 | ) |  | $ | (1.82 | ) |  | $ | (1.33 | )
Diluted loss per share (1) |  | $ | (1.14 | ) |  | $ | (1.82 | ) |  | $ | (1.33 | )
(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, 2017, 2016 and 2015, potentially dilutive securities excluded from the diluted loss per share calculation are as follows:
|  | October 31, 2017 |  |  | October 31, 2016 |  |  | October 31, 2015 |
May 2017 Offering – Series C Warrants |  |  | 11,580,900 |  |  |  | — |  |  |  | — |
May 2017 Offering – Series D Warrants |  |  | 2,584,174 |  |  |  | — |  |  |  | — |
July 2016 Offering - Series A Warrants |  |  | 7,680,000 |  |  |  | 7,680,000 |  |  |  | — |
July 2016 Offering - Series B Warrants |  |  | — |  |  |  | 3,826,000 |  |  |  | — |
July 2014 Offering - NRG Warrants |  |  | — |  |  |  | 166,666 |  |  |  | 166,666 |
Outstanding options to purchase common stock |  |  | 309,950 |  |  |  | 246,923 |  |  |  | 257,769 |
Unvested RSAs |  |  | 1,898,692 |  |  |  | 915,831 |  |  |  | 450,783 |
Series C Preferred Shares to satisfy conversion requirements (1) |  |  | 18,097,826 |  |  |  | — |  |  |  | — |
5% Series B Cumulative Convertible Preferred Stock (2) |  |  | 454,043 |  |  |  | 454,043 |  |  |  | 454,043 |
Series 1 Preferred Shares to satisfy conversion requirements (2) |  |  | 15,167 |  |  |  | 15,167 |  |  |  | 15,167 |
Total potentially dilutive securities |  |  | 42,620,752 |  |  |  | 13,304,630 |  |  |  | 1,344,428 |
(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 October 31, 2017 of $33,300,000 (original total stated value of $33,500,000 less conversion through October 31, 2017 totaling $200,000) divided by the conversion price of $1.84.
(2) | Refer to Note 13, Redeemable Preferred Stock, for information on the calculation of the common shares upon conversion.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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