Loans and Allowance for Credit Losses on Loans - TDR (Details)	12 Months Ended
Dec. 31, 2022 USD ($) loan	Dec. 31, 2021 USD ($) loan
Troubled debt restructurings - modified during the period
Number of TDR loan modifications \| loan	4	1
Loan modification activity	$ 478,000	$ 2,300,000
Other information
Commitments to lend to borrowers whose loans were classified as impaired	0	0
HELOC \| Others [Member]
TDR's defaulted
Pre-modification outstanding recorded investment during the period	$ 0	$ 0

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Amount of financing receivable modified as troubled debt restructuring.

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524

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Amount of unfunded portion of contractual agreement to lend funds to borrower for financing receivable modified as troubled debt restructuring.

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-Publisher FASB
-Name Accounting Standards Codification
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