Investment In And Loans To Dynamic Fuels, LLC (Schedule Of Equity Method Investments, Statement Of Operations) (Details) (Dynamic Fuels, LLC [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Jun. 30, 2012	Jun. 30, 2012
Dynamic Fuels, LLC [Member]
Revenue	$ 24,031	$ 124,318
Operating Expenses	28,444	130,599
Loss from Operations	(4,413)	(6,281)
Other Income (Expense)	(508)	(1,570)
Net Loss	$ (4,921)	$ (7,851)