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Loans and Allowance for Credit Losses on Loans - TDR (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($) contract	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($) contract
Troubled debt restructurings - modified during the period
# of contracts | contract		1		3
Pre-modification recorded investment	$ 0	$ 154,000	$ 0	$ 410,000
Post-modification recorded investment		$ 153,000		404,000
TDR's defaulted
Pre-modification outstanding recorded investment during the period			$ 0	$ 0
Real estate - residential | Residential Owner Occupied Loan [Member] | Home Affordable Modification Program [Member]
Troubled debt restructurings - modified during the period
# of contracts | contract		1		3
Pre-modification recorded investment		$ 154,000		$ 410,000
Post-modification recorded investment		$ 153,000		$ 404,000

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Number of financing receivables that have been modified by troubled debt restructurings.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
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Amount, after troubled debt restructuring, of modified financing receivable.

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Amount, before troubled debt restructuring, of financing receivable to be modified.

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-Topic 310
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Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

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