Derivatives (Schedule of Gain or Loss on Derivative Contracts, Net) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Derivative [Line Items]
Cash received (paid) on derivative contracts, net	$ (297,431)	$ 629,139	$ 315,883	$ 1,530,912
Non-cash gain (loss) on derivative contracts, net	(2,050,712)	3,442,438	(2,918,062)	1,722,771
Gains (losses) on derivative contracts, net	(2,348,143)	4,071,577	(2,602,179)	3,253,683
Natural Gas Costless Collars [Member]
Derivative [Line Items]
Cash received (paid) on derivative contracts, net	(122)		(9,089)
Non-cash gain (loss) on derivative contracts, net	(81,881)	21,983	597,080	27,883
Natural Gas Fixed Price Swaps [Member]
Derivative [Line Items]
Cash received (paid) on derivative contracts, net	3,105	500,520	1,242	1,220,320
Non-cash gain (loss) on derivative contracts, net	(6,291)	(113,956)	282,596	(685,765)
Oil Costless Collars [Member]
Derivative [Line Items]
Cash received (paid) on derivative contracts, net	(112,590)	87,997	(23,646)	201,696
Non-cash gain (loss) on derivative contracts, net	(696,360)	954,260	(1,107,246)	473,804
Oil Fixed Price Swaps [Member]
Derivative [Line Items]
Cash received (paid) on derivative contracts, net	(187,824)	40,622	347,376	108,896
Non-cash gain (loss) on derivative contracts, net	$ (1,266,180)	$ 2,580,151	$ (2,690,492)	$ 1,906,849