Net Income (Loss) Per Share/Unit - Narrative (Details)		12 Months Ended
Feb. 26, 2021	Sep. 30, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Reverse stock split		0.083
Tengasco
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Reverse stock split	0.083

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187143-122770

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Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration