Derivatives (Schedule of Gain or Loss on Derivative Contracts, Net) (Details) - USD ($)	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
Derivative [Line Items]
Cash received (paid) on derivative contracts, net	$ 4,109,210	$ 196,985	$ (1,001,893)
Non-cash gain (loss) on derivative contracts, net	(3,201,791)	5,908,160	(3,930,175)
Gains (losses) on derivative contracts, net	907,419	6,105,145	(4,932,068)
Natural Gas Costless Collars [Member]
Derivative [Line Items]
Cash received (paid) on derivative contracts, net	28,510	(191,200)	451,700
Non-cash gain (loss) on derivative contracts, net	(706,015)	10,453	(222,337)
Natural Gas Fixed Price Swaps [Member]
Derivative [Line Items]
Cash received (paid) on derivative contracts, net	1,687,600	817,160	748,125
Non-cash gain (loss) on derivative contracts, net	(1,535,122)	1,350,909	(425,865)
Oil Costless Collars [Member]
Derivative [Line Items]
Cash received (paid) on derivative contracts, net	1,011,472	(169,256)	(822,893)
Non-cash gain (loss) on derivative contracts, net	(538,022)	1,687,685	(1,026,163)
Oil Fixed Price Swaps [Member]
Derivative [Line Items]
Cash received (paid) on derivative contracts, net	1,381,628	(259,719)	(1,378,825)
Non-cash gain (loss) on derivative contracts, net	$ (422,632)	$ 2,859,113	$ (2,255,810)