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FHLB Advances, Other Borrowings and Junior Subordinated Notes Payable (Composition of Borrowed Funds) (Details) - USD ($) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 31, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Composition of Borrowed Funds |  |  |
Borrowed funds | $ 458,482,000 |  | $ 429,229,000
Borrowed funds, average balance | $ 404,029,000 |  | $ 429,624,000
Borrowed funds, interest rate during period | 1.91% |  | 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 | $ 29,600,000 | $ 0
Borrowed funds, average balance | $ 0 |  | $ 15,207,000
Borrowed funds, interest rate during period | 0.00% | 0.35% | 0.35%
FHLB advances |  |  |
Composition of Borrowed Funds |  |  |
Borrowed funds | $ 415,800,000 |  | $ 394,500,000
Borrowed funds, average balance | $ 366,670,000 |  | $ 379,891,000
Borrowed funds, interest rate during period | 1.36% |  | 1.45%
Other borrowings |  |  |
Composition of Borrowed Funds |  |  |
Borrowed funds | $ 8,860,000 |  | $ 920,000
Borrowed funds, average balance | $ 3,545,000 |  | $ 676,000
Borrowed funds, interest rate during period | 5.05% |  | 12.60%
Subordinated notes payable |  |  |
Composition of Borrowed Funds |  |  |
Borrowed funds | $ 23,757,000 |  | $ 23,747,000
Borrowed funds, average balance | $ 23,751,000 |  | $ 23,725,000
Borrowed funds, interest rate during period | 5.94% |  | 5.95%
Junior subordinated notes |  |  |
Composition of Borrowed Funds |  |  |
Borrowed funds | $ 10,065,000 |  | $ 10,062,000
Borrowed funds, average balance | $ 10,063,000 |  | $ 10,054,000
Borrowed funds, interest rate during period | 10.91% |  | 11.09%

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