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Loss Per Share | 6 Months Ended
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Apr. 30, 2015
Earnings Per Share [Abstract] |
Loss Per Share | Loss Per Share 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 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 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=32703322&loc=d3e4984-109258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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