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Derivatives (Summary Of Derivative Contracts) (Details) - USD ($)
Dec. 31, 2021
Sep. 30, 2021
Derivative Instruments And Hedging Activities Disclosure [Abstract]    
Gross amounts recognized - Current Assets [1] $ 386,069 $ 17,395
Offsetting adjustments - Current Assets [1] (386,069) (17,395)
Gross amounts recognized - Non-Current Assets [1] 364,782  
Offsetting adjustments - Non-Current Assets [1] (364,782)  
Gross amounts recognized - Current Liabilities [1] 6,799,377 12,105,383
Offsetting adjustments - Current Liabilities [1] (386,069) (17,395)
Derivative contracts, net [1] 6,413,308 12,087,988
Gross amounts recognized - Non-Current Liabilities [1] 497,351 1,696,479
Offsetting adjustments - Non-Current Liabilities [1] (364,782)  
Derivative contracts, net [1] $ 132,569 $ 1,696,479
[1] See Note 10: Fair Value Measurements for further disclosures regarding fair value of financial instruments.