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Loss Per Share | 9 Months Ended
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Jul. 31, 2012
Earnings Per Share [Abstract] |
Loss Per Share | Note 11. Loss Per Share The calculation of basic and diluted loss per share was as follows:
| Three Months Ended July 31, |  | Nine Months Ended July 31,
| 2012 |  | 2011 |  | 2012 |  | 2011
Numerator |  |  |  |  |  |  |
Net loss | $ | (10,010 | ) |  | $ | (7,830 | ) |  | $ | (24,387 | ) |  | $ | (38,845 | )
Net loss attributable to noncontrolling interest | 88 |  |  | 76 |  |  | 230 |  |  | 197 |
Modification of redeemable preferred stock of subsidiary | — |  |  | — |  |  | — |  |  | (8,987 | )
Preferred stock dividend | (800 | ) |  | (800 | ) |  | (2,401 | ) |  | (2,400 | )
Net loss to common shareholders | $ | (10,722 | ) |  | $ | (8,554 | ) |  | $ | (26,558 | ) |  | $ | (50,035 | )
Denominator |  |  |  |  |  |  |
Weighted average basic common shares | 185,906,834 |  |  | 126,923,550 |  |  | 158,548,998 |  |  | 122,306,465 |
Effect of dilutive securities (1) | — |  |  | — |  |  | — |  |  | — |
Weighted average diluted common shares | 185,906,834 |  |  | 126,923,550 |  |  | 158,548,998 |  |  | 122,306,465 |
Basic loss per share | $ | (0.06 | ) |  | $ | (0.07 | ) |  | $ | (0.17 | ) |  | $ | (0.41 | )
Diluted loss per share (1) | $ | (0.06 | ) |  | $ | (0.07 | ) |  | $ | (0.17 | ) |  | $ | (0.41 | )
(1) | Diluted loss per share was computed without consideration to potentially dilutive instruments as their inclusion would have been antidilutive, as the strike prices are above current market price. Potentially dilutive instruments include stock options, warrants and convertible preferred stock. At July 31, 2012 and 2011, there were options to purchase 3.2 million and 3.9 million shares of common stock, respectively. There were outstanding warrants for the right to purchase 10.2 million shares as of July 31, 2012 and 2011, respectively. Refer to our Annual Report on Form 10-K for the year ended October 31, 2011 for information on our convertible preferred stock.

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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 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 2: 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=16381557&loc=d3e4984-109258 Reference 3: 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 4: 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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: 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=6880815&loc=d3e20235-122688 + Details
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