Shareholders' Equity (Details) (USD $) | 3 Months Ended |
In Thousands, except Share data, unless otherwise specified | Jan. 31, 2015 | Jan. 31, 2014 |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | 4,300,000 | 5,000,000 |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $3.35 | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | |
Stockholders' equity (decifit), Including Portion Attributable to Noncontrolling Interest | $98,449 | |
Stock Granted During Period, Value, Share-based Compensation, Net of Forfeitures | 761 | |
Stock Issued During Period, Value, New Issues | 7,887 | |
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures | 157 | |
Dividends, Preferred Stock | -800 | -800 |
Foreign currency translation adjustments | -288 | -20 |
Net Loss | -4,154 | -10,815 |
Stockholders' equity (deficit), Including Portion Attributable to Noncontrolling Interest | 102,012 | |
Proceeds from Issuance of Common Stock | 8,488 | 33,755 |
Class of Warrant or Right, Unissued | 1,250,000 | |
Class of Warrant or Right, Outstanding | 2,250,000 | |
Class of Warrant or Right, Weighted Average Strike Price of Warrants or Rights Outstanding | $1.98 | |
Parent [Member] | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | |
Stockholders' equity (decifit), Including Portion Attributable to Noncontrolling Interest | 99,987 | |
Stock Granted During Period, Value, Share-based Compensation, Net of Forfeitures | 761 | |
Stock Issued During Period, Value, New Issues | 7,887 | |
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures | 157 | |
Dividends, Preferred Stock | -800 | |
Foreign currency translation adjustments | -288 | |
Net Loss | -4,066 | |
Stockholders' equity (deficit), Including Portion Attributable to Noncontrolling Interest | 103,638 | |
Noncontrolling Interest [Member] | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | |
Stockholders' equity (decifit), Including Portion Attributable to Noncontrolling Interest | -1,538 | |
Net Loss | -88 | |
Stockholders' equity (deficit), Including Portion Attributable to Noncontrolling Interest | -1,626 | |
Common Stock [Member] | Common Stock [Member] | | |
Stock Issued During Period, Shares, New Issues | 4,679,350 | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | |
Proceeds from Issuance of Common Stock | $7,900 | |
NRG Energy, Inc. [Member] | | |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | 2,000,000 | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | |
Common Stock, Capital Shares Reserved for Future Issuance | 5,000,000 | |