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Loss Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2015 | Apr. 30, 2014 | Apr. 30, 2015 | Apr. 30, 2014
Earnings Per Share [Abstract] |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | 4,300,000 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights |  | 5,000,000 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights |  | 4,300,000 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights |  | 5,000,000 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights |
Numerator [Abstract] |  |  |  |  |  |  |  |
Net Loss | $ (9,997)us-gaap_ProfitLoss |  | $ (16,039)us-gaap_ProfitLoss |  | $ (14,151)us-gaap_ProfitLoss |  | $ (26,854)us-gaap_ProfitLoss |
Net Income (Loss) Attributable to Noncontrolling Interest | 103 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest |  | 196 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest |  | 191 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest |  | 407 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest |
Dividends, Preferred Stock | (800)us-gaap_DividendsPreferredStock |  | (800)us-gaap_DividendsPreferredStock |  | (1,600)us-gaap_DividendsPreferredStock |  | (1,600)us-gaap_DividendsPreferredStock |
Net loss attributable to common shareholders | $ (10,694)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic |  | $ (16,643)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic |  | $ (15,560)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic |  | $ (28,047)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic |
Demoninator [Abstract] |  |  |  |  |  |  |  |
Weighted Average Number of Shares Outstanding, Diluted | 291,026,184 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding |  | 243,289,058 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding |  | 288,260,464 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding |  | 221,609,975 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding |
Weighted Average Number Diluted Shares Outstanding Adjustment | 0 us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment | [1] | 0 us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment | [1] | 0 us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment | [1] | 0 us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment | [1]
Weighted Average Number of Shares Outstanding, Basic | 291,026,184 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic |  | 243,289,058 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic |  | 288,260,464 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic |  | 221,609,975 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic |
Earnings Per Share, Basic | $ (0.04)us-gaap_EarningsPerShareBasic |  | $ (0.07)us-gaap_EarningsPerShareBasic |  | $ (0.05)us-gaap_EarningsPerShareBasic |  | $ (0.13)us-gaap_EarningsPerShareBasic |
Earnings Per Share, Diluted | $ (0.04)us-gaap_EarningsPerShareDiluted | [1] | $ (0.07)us-gaap_EarningsPerShareDiluted | [1] | $ (0.05)us-gaap_EarningsPerShareDiluted | [1] | $ (0.13)us-gaap_EarningsPerShareDiluted | [1]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | 3,000,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber |  | 3,100,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber |  | 3,000,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber |  | 3,100,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber |
[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 Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Subparagraph 2 -Article 4 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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