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Other Current Assets (Details) - USD ($)
$ in Thousands
Oct. 31, 2015
Oct. 31, 2014
Advance payments to vendors $ 2,281 $ 2,372
Deferred Finance Costs, Current, Net 198 129
Notes Receivable 585 529
Prepaid Expenses and Other 3,890 4,498
Other current assets 6,954 $ 7,528
NRG Energy [Member]    
Line of Credit Facility, Maximum Borrowing Capacity $ 40,000