Derivatives (Schedule of Gain or Loss on Derivative Contracts, Net) (Details) - USD ($)	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Derivative [Line Items]
Cash received (paid) on settled derivative contracts, net	$ (11,925,669)	$ 4,109,210	$ 196,985
Non-cash gain (loss) on derivative contracts, net	(4,276,820)	(3,201,791)	5,908,160
Gains (losses) on derivative contracts, net	(16,202,489)	907,419	6,105,145
Natural Gas Costless Collars [Member]
Derivative [Line Items]
Cash received (paid) on settled derivative contracts, net	(4,271,467)	28,510	(191,200)
Non-cash gain (loss) on derivative contracts, net	706,015	(706,015)	10,453
Natural Gas Fixed Price Swaps [Member]
Derivative [Line Items]
Cash received (paid) on settled derivative contracts, net	(1,862,801)	1,687,600	817,160
Non-cash gain (loss) on derivative contracts, net	(3,624,108)	(1,535,122)	1,350,909
Oil Costless Collars [Member]
Derivative [Line Items]
Cash received (paid) on settled derivative contracts, net	(2,047,098)	1,011,472	(169,256)
Non-cash gain (loss) on derivative contracts, net	(63,169)	(538,022)	1,687,685
Oil Fixed Price Swaps [Member]
Derivative [Line Items]
Cash received (paid) on settled derivative contracts, net	(3,744,303)	1,381,628	(259,719)
Non-cash gain (loss) on derivative contracts, net	$ (1,295,558)	$ (422,632)	$ 2,859,113