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Shareholders' Equity (Details) (USD $) | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Apr. 30, 2014 | Jan. 31, 2014 | Jan. 31, 2013 | Mar. 07, 2014 | Jan. 23, 2014 | Oct. 31, 2013 | Jun. 25, 2013
Debt Conversion, Original Debt, Amount | $ 22,000,000 | $ 15,000,000 |  |  |  |  |
Senior Unsecured Convertible Notes |  | 23,000,000 |  | 1,000,000 |  | 38,000,000 | 38,000,000
Stock Issued During Period, Shares, Conversion of Convertible Securities | 17,500,000 | 9,677,425 |  |  |  |  |
Debt Instrument, Convertible, Conversion Ratio |  | 645.1613 |  |  |  |  |
Debt Instrument, Convertible, Conversion Price |  | $ 1.55 |  |  |  |  | $ 1.55
Common stock issued relating to full exercise of an over allottment option |  |  |  |  | 3,300,000 |  |
Price Per Share for New Common Stock Issuance |  |  |  |  | $ 1.25 |  |
Stock Issued During Period, Shares, New Issues |  | 25,300,000 |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  | 5,000,000 |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  | 2.18 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Stockholders' equity (decifit), Including Portion Attributable to Noncontrolling Interest | 26,334,000 | (13,192,000) |  |  |  |  |
Stock Issued During Period, Value, Conversion of Convertible Securities |  | 12,960,000 | 0 |  |  |  |
Stock Issued During Period, Value, Other |  | 4,240,000 |  |  |  |  |
Stock Granted During Period, Value, Share-based Compensation, Net of Forfeitures |  | 621,000 |  |  |  |  |
Stock Issued During Period, Value, New Issues |  | 33,246,000 |  |  |  |  |
Stock Issued During Period, Value, Employee Benefit Plan |  | 94,000 |  |  |  |  |
Dividends, Preferred Stock |  | (800,000) | (800,000) |  |  |  |
Foreign currency translation adjustments |  | (20,000) | 76,000 |  |  |  |
Net Loss |  | (10,815,000) | (11,879,000) |  |  |  |
Stockholders' equity (deficit), Including Portion Attributable to Noncontrolling Interest |  | 26,334,000 |  |  |  |  |
Proceeds from Issuance of Common Stock |  | 33,755,000 | 0 |  |  |  |
Common Stock, Capital Shares Reserved for Future Issuance |  | 5,000,000 |  |  |  |  |
Public stock offering [Member] |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  | 29,500,000 |  |  |  |  |
Parent [Member] |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Stockholders' equity (decifit), Including Portion Attributable to Noncontrolling Interest |  | (12,412,000) |  |  |  |  |
Stock Issued During Period, Value, Conversion of Convertible Securities |  | 12,960,000 |  |  |  |  |
Stock Issued During Period, Value, Other |  | 4,240,000 |  |  |  |  |
Stock Granted During Period, Value, Share-based Compensation, Net of Forfeitures |  | 621,000 |  |  |  |  |
Stock Issued During Period, Value, New Issues |  | 33,246,000 |  |  |  |  |
Stock Issued During Period, Value, Employee Benefit Plan |  | 94,000 |  |  |  |  |
Dividends, Preferred Stock |  | (800,000) |  |  |  |  |
Foreign currency translation adjustments |  | (20,000) |  |  |  |  |
Net Loss |  | (10,604,000) |  |  |  |  |
Stockholders' equity (deficit), Including Portion Attributable to Noncontrolling Interest |  | 27,325,000 |  |  |  |  |
Noncontrolling Interest [Member] |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Stockholders' equity (decifit), Including Portion Attributable to Noncontrolling Interest |  | (780,000) |  |  |  |  |
Net Loss |  | (211,000) |  |  |  |  |
Stockholders' equity (deficit), Including Portion Attributable to Noncontrolling Interest |  | (991,000) |  |  |  |  |
Common Stock [Member] | Common Stock [Member] |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  | 2,704,200 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  | $ 3,700,000 |  |  |  |  |
Convertible debt make-whole obligation [Member] |  |  |  |  |  |  |
Stock Issued During Period, Shares, Other |  | 2,344,080 |  |  |  |  |
Interest Expense [Member] |  |  |  |  |  |  |
Stock Issued During Period, Shares, Other |  | 26,674 |  |  |  |  |

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