Nature of Business and Basis of Presentation (Tables)

9 Months Ended

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	%