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Shareholders' Equity (Deficit) (Details) (USD $) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Apr. 30, 2012 | Mar. 31, 2012 | Oct. 31, 2011 | Jan. 31, 2011 | Jul. 31, 2012 | Oct. 31, 2012 | Oct. 31, 2011 | Oct. 31, 2010 | Mar. 27, 2012 | Jan. 13, 2011
Stock Issued During Period, Shares, New Issues | 20,000,000 | 23,000,000 |  | 10,160,428 | 2,012,306 |  | 3,904,496 |  |  |
Stock Issued During Period, Value, New Issues |  |  |  |  |  | $ 64,003,000 | $ 32,864,000 | $ 32,080,000 |  |
Common stock issued relating to full exercise of an over allottment option |  |  |  |  |  |  |  |  | 3,000,000 |
Price Per Share for New Common Stock Issuance | $ 1.50 |  |  |  |  |  |  |  | $ 1.50 | $ 1.87
Common Stock, Par or Stated Value Per Share |  |  | $ 0.0001 |  |  | $ 0.0001 | $ 0.0001 |  |  | $ 0.0001
common stock share amount for each warrant issued |  |  |  |  |  |  |  |  |  | 1.0
Proceeds from Issuance of Common Stock |  |  |  |  |  |  |  |  |  | 19,000,000
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  |  |  | 2.29 |  |  |  | 2.29
Additional shares required for investor purchase |  |  | 10,000,000 |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock | 30,000,000 | 32,000,000 | 8,700,000 | 17,800,000 |  | 64,003,000 | 32,930,000 | 32,104,000 |  |
Noncontrolling Interest [Member] |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, New Issues |  |  |  |  |  | 0 | 0 | 0 |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  |  |  |  |  | 45,012,306 | 24,064,924 | 27,600,000 |  |
Stock Issued During Period, Value, New Issues |  |  |  |  |  | 5,000 | 2,000 | 3,000 |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  |  |  | $ 2,000,000 | $ 6,400,000 |  |  |

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