Derivatives (Summary Of Derivative Contracts) (Details) - USD ($)		Mar. 31, 2022	Sep. 30, 2021
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Gross amounts recognized - Current Assets	[1]	$ 60,347	$ 17,395
Offsetting adjustments - Current Assets	[1]	(60,347)	(17,395)
Gross amounts recognized - Non-Current Assets	[1]	31,174
Offsetting adjustments - Non-Current Assets	[1]	(31,174)
Gross amounts recognized - Current Liabilities	[1]	14,853,743	12,105,383
Offsetting adjustments - Current Liabilities	[1]	(60,347)	(17,395)
Derivative contracts, net	[1]	14,793,396	12,087,988
Gross amounts recognized - Non-Current Liabilities	[1]	1,062,813	1,696,479
Offsetting adjustments - Non-Current Liabilities	[1]	(31,174)
Derivative contracts, net	[1]	$ 1,031,639	$ 1,696,479

[1] See Note 10: Fair Value Measurements for further disclosures regarding fair value of financial instruments.