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Troubled Debt Restructurings (Narrative) (Details) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 USD ($) Investments | Dec. 31, 2019 USD ($) Investments
Troubled Debt Restructurings (Textual) |  |
Total number of loans classified under troubled debt restructurings (TDRs) | Investments | 22 | 19
Total sum of loans classified as troubled debt restructurings (TDRs) | $ | $ 9.5 | $ 9.3
Number of months previous loan payment defaulted | 12 months | 12 months
Financial difficulty (TDR) [Member] |  |
Troubled Debt Restructurings (Textual) |  |
Total number of loans classified under troubled debt restructurings (TDRs) | Investments | 5 |
Short-term loan | $ | $ 3.5 |

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