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Nature of Business and Basis of Presentation (Tables)
 12 Months Ended
Oct. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Percent of customer consolidated revenues [Table Text Block]
The percent of consolidated revenues from each customer for the years ended October 31, 2015, 2014 and 2013, respectively are presented below.
 
 
2015
 
2014
 
2013
POSCO Energy
 
67
%
 
69
%
 
54
%
The United Illuminating Company
 
14
%
 
9
%
 
—
%
Bridgeport Dominion Fuel Cell, LLC
 
3
%
 
3
%
 
29
%
Department of Energy
 
5
%
 
4
%
 
5
%
Pepperidge Farms
 
3
%
 
—
%
 
—
%
NRG Energy
 
2
%
 
3
%
 
—
%
Total
 
94
%
 
88
%
 
88
%