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Troubled Debt Restructurings (Details Textual) $ in Millions | 12 Months Ended
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Dec. 31, 2020 USD ($) Investments | Dec. 31, 2019 USD ($) Investments
Troubled Debt Restructurings (Textual) |  |
Total number of loans classified under troubled debt restructurings (TDRs) | Investments | 20 | 19
Total sum of loans classified as troubled debt restructurings (TDRs) | $ | $ 8.4 | $ 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) | 864 |
Short-term loan deferral | $ | $ 3.2 |
Remain Under Deferral [Member] |  |
Troubled Debt Restructurings (Textual) |  |
Total number of loans classified under troubled debt restructurings (TDRs) | 2 |
Commercial [Member] |  |
Troubled Debt Restructurings (Textual) |  |
Total number of loans added under troubled debt restructurings (TDRs) | Investments | 6 |

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