Basis of Presentation, Restatement of Financials and Accounting Principles (Summary of Effect of Error Correction on All Affected Line Items of Previously Issued Statements of Operations) (Details) - USD ($)	3 Months Ended				6 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2020	Mar. 31, 2019
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Revenues	$ 7,217,618		$ 9,221,319		$ 14,811,456	$ 21,432,038
Revenues	11,311,287		7,636,213		21,887,818	33,965,207
Transportation, gathering and marketing	1,356,628		1,482,671		2,739,629	3,072,687
Production taxes	373,754		467,308		701,035	1,076,259
Total cost and expenses	38,753,101		9,697,547		47,183,518	19,719,601
Income (loss) before provision (benefit) for income taxes	(27,441,814)		(2,061,334)		(25,295,700)	14,245,606
Provision (benefit) for income taxes	(6,987,000)		(130,000)		(6,733,000)	3,441,000
Net income (loss)	$ (20,454,814)	$ 1,892,114	$ (1,931,334)	$ 12,735,940	$ (18,562,700)	$ 10,804,606
Basic and diluted earnings (loss) per common share	$ (1.24)		$ (0.11)		$ (1.12)	$ 0.64
Oil, NGL and Natural Gas [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Revenues	$ 7,217,618		$ 9,221,319		$ 14,811,456	$ 21,432,038
As Reported [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Revenues	12,076,574				22,653,105
Transportation, gathering and marketing	1,386,297				2,769,298
Production taxes	404,728				732,009
Total cost and expenses	38,813,744				47,244,161
Income (loss) before provision (benefit) for income taxes	(26,737,170)				(24,591,056)
Provision (benefit) for income taxes	(6,764,000)				(6,510,000)
Net income (loss)	$ (19,973,170)				$ (18,081,056)
Basic and diluted earnings (loss) per common share	$ (1.21)				$ (1.09)
As Reported [Member] | Oil, NGL and Natural Gas [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Revenues	$ 7,982,905				$ 15,576,743
Adjustments [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Revenues	(765,287)				(765,287)
Transportation, gathering and marketing	(29,669)				(29,669)
Production taxes	(30,974)				(30,974)
Total cost and expenses	(60,643)				(60,643)
Income (loss) before provision (benefit) for income taxes	(704,644)				(704,644)
Provision (benefit) for income taxes	(223,000)				(223,000)
Net income (loss)	$ (481,644)				$ (481,644)
Basic and diluted earnings (loss) per common share	$ (0.03)				$ (0.03)
Adjustments [Member] | Oil, NGL and Natural Gas [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Revenues	$ (765,287)				$ (765,287)