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Loans and Allowance for Credit Losses - Loans (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) contract loan	Dec. 31, 2021 USD ($) loan
Loans and Allowance for Credit Losses - Loans
Number of new loans modified as TDRs | loan	0	0
Number of TDRs accounts | loan	1	1
Amount of recorded investment in new troubled debt restructurings, totaled	$ 34,000	$ 36,000
Amount of interest that would have been accrued from non performing financial receivable, totaled	$ 29,000	$ 14,000
Non-performing TDRs
Loans and Allowance for Credit Losses - Loans
Number of TDRs accounts | loan	1	1
Amount of recorded investment in new troubled debt restructurings, totaled	$ 34,048,000	$ 36,139,000
Consumer
Loans and Allowance for Credit Losses - Loans
Amount of consumer and indirect loans, outstanding	34,048
Amount of consumer and indirect loans, specific reserves	$ 20,491
Number Of Loan Consumer And Indirect Loans | contract	1
Single-family Residential | Real Estate Loan
Loans and Allowance for Credit Losses - Loans
Number of TDRs accounts | loan	1	1
Amount of recorded investment in new troubled debt restructurings, totaled	$ 34,000	$ 36,000

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

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Loans And Leases Receivable Consumer And Indirect Loans

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Represents number of loan consumer and indirect loans.

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554

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The gross interest income that would have been recorded in the period on troubled debt restructurings, if the loans had been current in accordance with their original terms and had been outstanding throughout the period or since origination, if held for part of the period.

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-Topic 310
-SubTopic 40
-Section 50
-Paragraph 1
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