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Summary of Significant Accounting Policies - Recent Transactions (Details) - USD ($) $ in Millions |  | 9 Months Ended
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Feb. 08, 2019 | Sep. 30, 2019
Summary Of Significant Accounting Policies |  |
Pre-tax gain on sale of branch |  | $ 2.2
Hawthorn Bank | Branch Located in Branson, Missouri |  |
Summary Of Significant Accounting Policies |  |
Deposit Assets | $ 10.6 |
Pre-tax gain on sale of branch | 2.2 |
Gain on sale of branch, net of tax | $ 1.7 |

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