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v3.19.3

Organization and Accounting Policies (Narrative) (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 USD ($) / $ | Sep. 30, 2018 USD ($) | Sep. 30, 2019 USD ($) / $ | Sep. 30, 2018 USD ($) | Dec. 31, 2018 / $
Organization And Accounting Policies [Line Items] |  |  |  |  |
Exchange rate | / $ | 599.3 |  | 599.3 |  | 573.0
Bad debt recovery (expense) | $ (54) | $ 157 | $ (30) | $ 68 |
Transfers between levels | 0 | 0 | $ 0 | 0 |
Monthly royalty rate, based on production at the published price |  |  | 13.00% |  |
Working interest of carried partner, percentage |  |  | 7.50% |  |
Future working interest of carried partner percentage |  |  | 10.00% |  |
Loss on foreign currency transactions | 100 | (0) | $ 300 | 100 |
Gabon |  |  |  |  |
Organization And Accounting Policies [Line Items] |  |  |  |  |
Receivable balance, gross, noncurrent | 8,000 |  | 8,000 |  |
Receivable balance, net, noncurrent | 2,700 |  | 2,700 |  |
Bad debt recovery (expense) | $ (5) | $ 200 | $ 24 | $ 100 |

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