Loss Per Share - Schedule of Potentially Dilutive Securities Excluded from the Diluted Loss Per Share Calculation (Details) - shares	9 Months Ended
Jul. 31, 2017	Jul. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Share-based compensation arrangement by share-based payment award, options, outstanding, number	316,330	247,776
Convertible preferred stock, shares issued upon conversion	454,043	454,043
Antidilutive securities excluded from computation of earnings per share, amount	33,092,329	14,399,730
Series 1 Preferred Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Convertible preferred stock, shares issued upon conversion	15,166	15,166
Unvested Restricted Stock Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Share-based compensation arrangement by share-based payment award, non-option equity instruments, outstanding, number	2,004,330	910,079
Series A Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Class of warrant or right, number of securities called by warrants or rights	7,680,000	7,680,000
Series C Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Class of warrant or right, number of securities called by warrants or rights	12,000,000
NRG Energy, Inc. [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Class of warrant or right, number of securities called by warrants or rights		166,666
Series D Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Class of warrant or right, number of securities called by warrants or rights	10,622,460
Series B Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Class of warrant or right, number of securities called by warrants or rights		4,926,000

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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