Basis of Presentation, Restatement of Financials and Accounting Principles (Summary of Effect of Error Correction on All Affected Line Items of Previously Issued Balance Sheets) (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Oil, NGL and natural gas sales receivables (net of allowance for uncollectable accounts)	$ 3,208,703		$ 4,377,646
Refundable income taxes	3,577,870		1,505,442
Total current assets	12,103,677		14,477,455
Total assets	98,235,306		126,644,947
Deferred income taxes, net	1,265,007		5,976,007
Retained earnings	61,965,702		81,848,301
Stockholders' Equity	67,604,020		87,653,575
Total stockholders' equity	60,051,137	$ 80,108,933	79,309,533	$ 134,832,789	$ 139,252,713	$ 128,765,205
Total liabilities and stockholders' equity	98,235,306		$ 126,644,947
As Reported [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Oil, NGL and natural gas sales receivables (net of allowance for uncollectable accounts)	3,913,347
Refundable income taxes	3,401,870
Total current assets	12,632,321
Total assets	98,763,950
Deferred income taxes, net	1,312,007
Retained earnings	62,447,346
Stockholders' Equity	68,085,664
Total stockholders' equity	60,532,781
Total liabilities and stockholders' equity	98,763,950
Adjustments [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Oil, NGL and natural gas sales receivables (net of allowance for uncollectable accounts)	(704,644)
Refundable income taxes	176,000
Total current assets	(528,644)
Total assets	(528,644)
Deferred income taxes, net	(47,000)
Retained earnings	(481,644)
Stockholders' Equity	(481,644)
Total stockholders' equity	(481,644)
Total liabilities and stockholders' equity	$ (528,644)