Derivatives - Additional Information (Narrative) (Details)	12 Months Ended
Dec. 31, 2019 USD ($) swap	Dec. 31, 2018 USD ($)
Derivative [Line Items]
Number of swap transaction \| swap	16
Notional amount	$ 101,205,000
Derivative assets	225,000	$ 206,000
Estimated Fair Value	73,000	129,000
Interest Rate Lock Commitments
Derivative [Line Items]
Mortgage banking derivatives	48,999,000	28,731,000
Forward Commitments
Derivative [Line Items]
Mortgage banking derivatives	$ 62,824,000	$ 31,519,000

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Nominal or face amount used to calculate payments on the derivative liability.

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Fair value as of the balance sheet date of all derivatives not designated as hedging instruments.

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