Accounts Receivable (Details) (USD $)	Oct. 31, 2013	Oct. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
U.S. Government Amount Billed	$ 786,000	$ 20,000
U.S. Government Unbilled Recoverable Costs	639,000	890,000
U.S. Government Accounts Receivable Total	1,425,000	910,000
Commercial Customers Amount Billed	17,344,000	18,786,000
Commercial Customers Unbilled Recoverable Costs	30,347,000	6,288,000
Commercial Customers Accounts Receivable Total	47,691,000	25,074,000
Accounts receivable, net of allowance for doubtful accounts	49,116,000	25,984,000
Allowance for Doubtful Accounts Receivable, Current	14,000	600,000
POSCO Energy [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Related Parties, Current	17,400,000	18,100,000
Dominion Bridgeport FuelCell Park [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial Customers Unbilled Recoverable Costs	17,800,000
POSCO Energy [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial Customers Unbilled Recoverable Costs	$ 6,700,000