Loss Per Share - Schedule of Potentially Dilutive Securities Excluded from the Diluted Loss Per Share Calculation (Details) - shares	6 Months Ended
	Apr. 30, 2017	Apr. 30, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Share-based compensation arrangement by share-based payment award, options, outstanding, number	214,383	251,653
Convertible preferred stock, shares issued upon conversion	454,043	454,043
Antidilutive securities excluded from computation of earnings per share, amount	10,516,990	1,796,123
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	1,986,732	908,595
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	0
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	166,666