Debt Schedule Of Financing Fees (Details) - USD ($)	6 Months Ended
	Mar. 31, 2019	Sep. 30, 2018	Mar. 30, 2014
Schedule Of Financing Fees [Line Items]
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net	$ (15,529,000)	$ (17,055,000)
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	$ 7,318,000
Class of Warrant or Right, Outstanding	6,000,000
Unamortized Debt Issuance Expense	$ 15,529,000
Amortization Of Present Value Discount- Current Fiscal Year	1,933,000
Amortization Of Present Value Discount- Next Fiscal Year	3,989,000
Amortization Of Present Value Discount- Year 3	4,154,000
Amortization Of Present Value Discount- Year 4	4,332,000
Amortization Of Present Value Discount- Year 5	$ 1,121,000
Investment Warrants, Exercise Price	$ 4.19
Warrant liability fair value	$ 4,479,000	$ 1,726,000	$ 16,930,000
Amortization of Debt Issuance Costs	$ 1,525,000