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Members’/Shareholders' Equity - Narrative (Details) |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Feb. 26, 2021 shares | Jun. 30, 2022 USD ($) shares | Jun. 30, 2021 USD ($) | Mar. 31, 2021 | Jun. 30, 2022 USD ($) shares | Jun. 30, 2021 USD ($) $ / shares shares | Sep. 30, 2021 shares
Class of Stock [Line Items] |  |  |  |  |  |  |
Dividends on common units/stock | $ |  | $ 6,200,000 | $ 0 |  |  |  |
Reverse stock split |  |  |  | 0.083 |  |  |
Common stock outstanding post merger (in Shares) | shares | 17,800,000 | 19,865,116 |  |  | 19,865,116 |  | 19,672,050
Share-based compensation expense | $ |  | $ 553,000 | 779,000 |  | $ 2,521,000 | $ 5,353,000 |
Unit-based compensation expense | $ |  | 0 | 0 |  | 0 | 689,000 |
General and Administrative Expense |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Share-based compensation expense | $ |  | $ 800,000 | $ 800,000 |  | $ 2,800,000 | $ 5,400,000 |
Tengasco |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Reverse stock split | 0.083 |  |  |  |  |  |
2021 Long-Term Incentive Plan |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Common stock reserved for future issuance (in Shares) | shares | 1,387,022 |  |  |  |  |  |
Common stock outstanding post merger (in Shares) | shares |  | 761,635 |  |  | 761,635 |  |
2021 Long-Term Incentive Plan | Restricted Stock |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Additional share based compensation to be recognized | $ |  | $ 5,000,000 |  |  | $ 5,000,000 |  |
Share based compensation to be recognized period |  |  |  |  | 23 months |  |
Granted (in Shares/Units) | shares |  |  |  |  | 224,158 |  |
2018 Long-Term Incentive Plan | Restricted Stock Units |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Granted (in Shares/Units) | shares |  |  |  |  |  | 13,309 |
Vesting period |  |  |  |  |  | 36 months |
Grant date fair value (USD per Share/Unit) | $ / shares |  |  |  |  |  | $ 112.47 |

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