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FHLB Advances, Other Borrowings and Junior Subordinated Notes Payable (Composition of Borrowed Funds) (Details) - USD ($) | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020 | Apr. 28, 2020
Composition of Borrowed Funds |  |  |
Borrowed funds | $ 404,162,000 | $ 429,229,000 |
Borrowed funds, average balance | $ 425,458,000 | $ 429,624,000 |
Borrowed funds, interest rate during period | 1.84% | 1.91% |
Federal funds purchased |  |  |
Composition of Borrowed Funds |  |  |
Borrowed funds | $ 0 | $ 0 |
Borrowed funds, average balance | $ 0 | $ 71,000 |
Borrowed funds, interest rate during period | 0.00% | 0.69% |
Federal Reserve PPPLF |  |  |
Composition of Borrowed Funds |  |  |
Borrowed funds | $ 0 | $ 0 | $ 29,600,000
Borrowed funds, average balance | $ 0 | $ 15,207,000 |
Borrowed funds, interest rate during period | 0.00% | 0.35% |
FHLB advances |  |  |
Composition of Borrowed Funds |  |  |
Borrowed funds | $ 357,800,000 | $ 394,500,000 |
Borrowed funds, average balance | $ 384,581,000 | $ 379,891,000 |
Borrowed funds, interest rate during period | 1.30% | 1.45% |
Line of Credit |  |  |
Composition of Borrowed Funds |  |  |
Borrowed funds | $ 0 | $ 0 |
Borrowed funds, average balance | $ 100,000 | $ 0 |
Borrowed funds, interest rate during period | 2.89% | 0.00% |
Other borrowings |  |  |
Composition of Borrowed Funds |  |  |
Borrowed funds | $ 12,512,000 | $ 920,000 |
Borrowed funds, average balance | $ 6,950,000 | $ 676,000 |
Borrowed funds, interest rate during period | 4.28% | 12.60% |
Subordinated notes payable |  |  |
Composition of Borrowed Funds |  |  |
Borrowed funds | $ 23,778,000 | $ 23,747,000 |
Borrowed funds, average balance | $ 23,761,000 | $ 23,725,000 |
Borrowed funds, interest rate during period | 5.94% | 5.95% |
Junior subordinated notes |  |  |
Composition of Borrowed Funds |  |  |
Borrowed funds | $ 10,072,000 | $ 10,062,000 |
Borrowed funds, average balance | $ 10,066,000 | $ 10,054,000 |
Borrowed funds, interest rate during period | 11.02% | 11.09% |

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