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Nature of Business and Basis of Presentation (Tables) | 9 Months Ended
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Jul. 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 July 31, |  | Nine Months Ended July 31,
| 2013 |  | 2012 |  | 2013 |  | 2012
POSCO Energy | 34 | % |  | 72 | % |  | 53 | % |  | 72 | %
Dominion Bridgeport Fuel Cell, LLC | 51 | % |  | — | % |  | 32 | % |  | — | %
U.S. Government (primarily the Department of Energy) | 4 | % |  | 9 | % |  | 5 | % |  | 7 | %
Combined | 89 | % |  | 81 | % |  | 90 | % |  | 79 | %

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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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