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Nature of Business and Basis of Presentation (Tables) | 3 Months Ended
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Jan. 31, 2013
Nature of Business and Basis of Presentation [Abstract] |
Percent of customer consolidated revenues [Table Text Block] | The percent of consolidated revenues from each customer is presented below.
| Three Months Ended January 31,
| 2013 |  | 2012
POSCO Energy | 69 | % |  | 64 | %
Dominion Bridgeport Fuel Cell, LLC | 16 | % |  | — | %
U.S. Government (primarily the Department of Energy) | 5 | % |  | 5 | %
Logan Energy | — | % |  | 11 | %
Combined | 90 | % |  | 80 | %

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- Definition Percent of customer consolidated revenues for the sale of products and for research and development contracts. + References No definition available. + Details
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