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Accounts Receivable (Details) (USD $)
Jul. 31, 2013
Oct. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Government Contract Receivable $ 342,000 $ 20,000
Government Contract Receivable, Unbilled Amounts 1,122,000 890,000
U.S. Government accounts receivable total 1,464,000 910,000
Contract Receivable 19,723,000 18,786,000
Unbilled Contracts Receivable 19,163,000 6,288,000
Commercial Customers accounts receivable 38,886,000 25,074,000
Accounts Receivable, Net, Current 40,350,000 25,984,000
Allowance for Doubtful Accounts Receivable, Current 600,000 600,000
POSCO Energy [Member]
    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts Receivable, Related Parties, Current $ 13,800,000 $ 18,100,000