Summary Of Significant Accounting Policies (Summary Of Derivative Contracts) (Details) - USD ($)		Sep. 30, 2017	Sep. 30, 2016
Accounting Policies [Abstract]
Gross amounts recognized - Current Assets	[1]	$ 735,702	$ 68,235
Offsetting adjustments - Current Assets	[1]	(190,778)	(68,235)
Net presentation on Balance Sheets - Current Assets	[1]	544,924
Gross amounts recognized - Current Liabilities	[1]	190,778	471,847
Offsetting adjustments - Current Liabilities	[1]	(190,778)	(68,235)
Net presentation on Balance Sheets - Current Liabilities	[1]		403,612
Gross amounts recognized - Non-Current Assets	[1]	9,439	4,759
Offsetting adjustments - Non-Current Assets	[1]	(9,439)	(4,759)
Gross amounts recognized - Non-Current Liabilities	[1]	38,204	29,418
Offsetting adjustments - Non-Current Liabilities	[1]	(9,439)	(4,759)
Net presentation on Balance Sheets - Non-Current Liabilities	[1]	$ 28,765	$ 24,659

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