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Loss Per Share (Tables) | 6 Months Ended
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Apr. 30, 2013
Loss 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,
| 2013 |  | 2012 |  | 2013 |  | 2012
Numerator |  |  |  |  |  |  |
Net loss | $ | (7,629 | ) |  | $ | (8,363 | ) |  | $ | (19,508 | ) |  | $ | (14,377 | )
Net loss attributable to noncontrolling interest | 264 |  |  | 71 |  |  | 462 |  |  | 142 |
Preferred stock dividend | (800 | ) |  | (801 | ) |  | (1,600 | ) |  | (1,601 | )
Net loss attributable to common shareholders | $ | (8,165 | ) |  | $ | (9,093 | ) |  | $ | (20,646 | ) |  | $ | (15,836 | )
Denominator |  |  |  |  |  |  |
Weighted average basic common shares | 190,431,554 |  |  | 150,013,074 |  |  | 188,968,577 |  |  | 144,830,437 |
Effect of dilutive securities (1) | — |  |  | — |  |  | — |  |  | — |
Weighted average diluted common shares | 190,431,554 |  |  | 150,013,074 |  |  | 188,968,577 |  |  | 144,830,437 |
Basic loss per share | $ | (0.04 | ) |  | $ | (0.06 | ) |  | $ | (0.11 | ) |  | $ | (0.11 | )
Diluted loss per share (1) | $ | (0.04 | ) |  | $ | (0.06 | ) |  | $ | (0.11 | ) |  | $ | (0.11 | )
(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 and convertible preferred stock. At April 30, 2013 and 2012, there were options to purchase 3.2 million and 3.3 million, respectively, shares of common stock. Refer to our Annual Report on Form 10-K for the year ended October 31, 2012 for information on our convertible preferred stock.

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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