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Accounts Receivable (Details) (USD $)
Jan. 31, 2014
Oct. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Government Contract Receivable $ 1,962,000 $ 786,000
Government Contract Receivable, Unbilled Amounts 1,355,000 639,000
U.S. Government accounts receivable total 3,317,000 [1] 1,425,000
Contract Receivable 15,286,000 17,344,000
Unbilled Contracts Receivable 15,228,000 30,347,000
Commercial Customers accounts receivable 30,514,000 47,691,000
Accounts Receivable, Net, Current 33,831,000 49,116,000
Allowance for Doubtful Accounts Receivable, Current 70,000 10,000
POSCO Energy [Member]
    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts Receivable, Related Parties, Current 20,300,000 17,400,000
Government [Member]
    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Government Contract Receivable 1,400,000  
POSCO Energy [Member]
    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Unbilled Contracts Receivable 8,600,000 6,700,000
Dominion Bridgeport FuelCell Park [Member]
    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Unbilled Contracts Receivable $ 300,000 $ 17,800,000
[1] Total U.S. Government accounts receivable outstanding at January 31, 2014 is $1.4 million .