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Commitments And Contingencies (Narrative) (FY) (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended | 60 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) $ / shares $ / bbl shares | Dec. 31, 2019 USD ($) $ / shares $ / bbl shares | Dec. 31, 2019 USD ($) $ / shares | Sep. 30, 2012 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |
Cost reduction | $ 390,000 |  |  | $ 377,000 |
Cost reduction paid into common stock |  | $ 77,000 | $ 49,000 |  |
Shares issued for services | shares |  | 94,000 | 100,000 |  |
Share price | $ / shares |  | $ 0.82 | $ 0.49 | $ 0.49 |
Period of trailing average of WTI |  | 30 days | 30 days |  |
Incidence Of Non-Compliance [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Maximum potential loss |  |  |  |  | $ 386,000
West Texas Intermediate [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Period of trailing average of WTI |  | 30 days |  |  |
Minimum [Member] | West Texas Intermediate [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Compensation reduction | $ / bbl |  | 70 | 70 |  |
Compensation reimbursement | $ / bbl |  | 85 | 85 |  |

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