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Loss Per Share (Tables) | 6 Months Ended
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Apr. 30, 2015
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | The calculation of basic and diluted loss per share was as follows:
| Three Months Ended April 30, |  | Six Months Ended April 30
| 2015 |  | 2014 |  | 2015 |  | 2014
Numerator |  |  |  |  |  |  |
Net loss | $ | (9,997 | ) |  | $ | (16,039 | ) |  | $ | (14,151 | ) |  | $ | (26,854 | )
Net loss attributable to noncontrolling interest | 103 |  |  | 196 |  |  | 191 |  |  | 407 |
Preferred stock dividend | (800 | ) |  | (800 | ) |  | (1,600 | ) |  | (1,600 | )
Net loss attributable to common shareholders | $ | (10,694 | ) |  | $ | (16,643 | ) |  | $ | (15,560 | ) |  | $ | (28,047 | )
Denominator |  |  |  |  |  |  |
Weighted average basic common shares | 291,026,184 |  |  | 243,289,058 |  |  | 288,260,464 |  |  | 221,609,975 |
Effect of dilutive securities (1) | — |  |  | — |  |  | — |  |  | — |
Weighted average diluted common shares | 291,026,184 |  |  | 243,289,058 |  |  | 288,260,464 |  |  | 221,609,975 |
Basic loss per share | $ | (0.04 | ) |  | $ | (0.07 | ) |  | $ | (0.05 | ) |  | $ | (0.13 | )
Diluted loss per share (1) | $ | (0.04 | ) |  | $ | (0.07 | ) |  | $ | (0.05 | ) |  | $ | (0.13 | )
(1) | Diluted loss per share was computed without consideration to potentially dilutive instruments as their inclusion would have been antidilutive. Potentially dilutive instruments include stock options, unvested restricted stock awards, convertible preferred stock and warrants. As of April 30, 2015 and 2014, there were options to purchase 3.0 million and 3.1 million shares of common stock, respectively, and as of April 30, 2015 and 2014 and there were warrants to purchase 4.3 million and 5.0 million shares of common stock, respectively, which were excluded from the computation as they would be antidilutive.

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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