Nature of Business and Basis of Presentation (Tables)

3 Months Ended

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	%