Regulatory Assets and Liabilities (Schedule of Regulatory Liabilities) (Details) - USD ($) |
Dec. 31, 2020 |
Sep. 30, 2020 |
---|---|---|
Regulatory Liabilities [Line Items] | ||
Current regulatory liabilities | $ 267,503 | $ 890,313 |
Deferred Credits and Other Liabilities: | ||
Asset retirement obligations | 7,288,892 | 7,180,982 |
Regulatory cost of retirement obligations | 12,892,254 | 12,678,043 |
Noncurrent regulatory liabilities - excess deferred income taxes | 10,612,992 | 10,729,082 |
Total non-current | 30,794,138 | 30,588,107 |
Total regulatory liabilities | 31,061,641 | 31,478,420 |
WNA [Member] | ||
Regulatory Liabilities [Line Items] | ||
Current regulatory liabilities | 0 | 601,784 |
Excess deferred income taxes [Member] | ||
Regulatory Liabilities [Line Items] | ||
Current regulatory liabilities | 205,353 | 205,353 |
Other deferred liabilities [Member] | ||
Regulatory Liabilities [Line Items] | ||
Current regulatory liabilities | $ 62,150 | $ 83,176 |