Derivatives (Summary Of Derivative Contracts) (Details) - USD ($)		Jun. 30, 2022	Sep. 30, 2021
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Gross amounts recognized - Current Assets	[1]	$ 763,554	$ 17,395
Offsetting adjustments - Current Assets	[1]	(763,554)	(17,395)
Gross amounts recognized - Non-Current Assets	[1]	21,155
Offsetting adjustments - Non-Current Assets	[1]	(21,155)
Gross amounts recognized - Current Liabilities	[1]	10,953,100	12,105,383
Offsetting adjustments - Current Liabilities	[1]	(763,554)	(17,395)
Derivative contracts, net	[1]	10,189,546	12,087,988
Gross amounts recognized - Non-Current Liabilities	[1]	1,089,699	1,696,479
Offsetting adjustments - Non-Current Liabilities	[1]	(21,155)
Derivative contracts, net	[1]	$ 1,068,544	$ 1,696,479

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