Nature of Business and Basis of Presentation (Tables)

12 Months Ended

Oct. 31, 2014

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, 2014, 2013 and 2012, respectively are presented below.

	2014		2013		2012
POSCO Energy	69	%	54	%	76	%
The United Illuminating Company	9	%	—	%	—	%
Bridgeport Dominion Fuel Cell, LLC	3	%	29	%	—	%
Department of Energy	4	%	5	%	7	%
NRG Energy	3	%	—	%	—	%
Total	88	%	88	%	83	%