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Loss Per Share | 12 Months Ended
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Oct. 31, 2012
Earnings Per Share [Abstract] |
Earnings Per Share | Note 16. Earnings Per Share Basic earnings (loss) per common share (“EPS”) are generally calculated as income (loss) available to common shareholders divided by the weighted average number of common shares outstanding. Diluted EPS is generally calculated as income (loss) available to common shareholders divided by the weighted average number of common shares outstanding plus the dilutive effect of common share equivalents. The calculation of basic and diluted EPS for the years ended October 31, 2012, 2011 and 2010 was as follows:
|  | 2012 |  | 2011 |  | 2010
Numerator |  |  |  |  |  |
Net loss |  | $ | (35,906 | ) |  | $ | (45,974 | ) |  | $ | (56,326 | )
Net loss attributable to noncontrolling interest |  | 411 |  |  | 261 |  |  | 663 |
Adjustment for modification of redeemable preferred stock of subsidiary |  | — |  |  | (8,987 | ) |  | — |
Preferred stock dividend |  | (3,201 | ) |  | (3,200 | ) |  | (3,201 | )
Net loss to common shareholders |  | $ | (38,696 | ) |  | $ | (57,900 | ) |  | $ | (58,864 | )
Denominator |  |  |  |  |  |
Weighted average basic common shares |  | 165,471,261 |  |  | 124,498,073 |  |  | 93,925,863 |
Effect of dilutive securities (1) |  | — |  |  | — |  |  | — |
Weighted average diluted common shares |  | 165,471,261 |  |  | 124,498,073 |  |  | 93,925,863 |
Basic loss per share |  | (0.23 | ) |  | (0.47 | ) |  | (0.63 | )
Diluted loss per share (1) |  | (0.23 | ) |  | (0.47 | ) |  | (0.63 | )
(1) | Due to the net loss to common shareholders in each of the years presented above, diluted earnings per share was computed without consideration to potentially dilutive instruments as their inclusion would have been antidilutive. Potentially dilutive instruments include stock options, warrants and convertible preferred stock. At October 31, 2012, 2011 and 2010, there were options to purchase 3.1 million, 3.3 million and 5.1 million shares of common stock, respectively. On January 13, 2011 we issued 10.2 million warrants in connection with a registered direct offering. Each warrant was exercisable for 1 share of common stock. The warrants had an exercise price of $2.29 per share and were exercisable beginning six months and one day after the initial closing date and expired in the fourth quarter of 2012.

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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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