Accounts Receivable (Details) (USD $)	Oct. 31, 2014	Oct. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
U.S. Government Amount Billed	$ 2,517,000	$ 786,000
U.S. Government Unbilled Recoverable Costs	2,886,000	639,000
U.S. Government Accounts Receivable Total	5,403,000	1,425,000
Commercial Customers Amount Billed	8,871,000	17,344,000
Commercial Customers Unbilled Recoverable Costs	50,101,000	30,347,000
Commercial Customers Accounts Receivable Total	58,972,000	47,691,000
Accounts receivable, net of allowance for doubtful accounts of $132 and $14 at October 31, 2014 and 2013, respectively	64,375,000	49,116,000
Allowance for Doubtful Accounts Receivable, Current	132,000	14,000
POSCO Energy [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Related Parties, Current	29,900,000	17,400,000
Government [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
U.S. Government Amount Billed	$ 1,700,000