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Fair Value Measurement - Nonrecurring (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Balances of the assets and liabilities measured at fair value on a nonrecurring basis
Loss	$ 850	$ 1,500
Nonrecurring
Balances of the assets and liabilities measured at fair value on a nonrecurring basis
Loss	231		$ 199
Nonrecurring | Individually Evaluated Loans
Balances of the assets and liabilities measured at fair value on a nonrecurring basis
Loss	231		199
Level 3 | Nonrecurring
Balances of the assets and liabilities measured at fair value on a nonrecurring basis
Assets measured at fair value	9,364		9,602
Level 3 | Nonrecurring | Individually Evaluated Loans
Balances of the assets and liabilities measured at fair value on a nonrecurring basis
Assets measured at fair value	$ 9,364		$ 9,602
Level 3 | Nonrecurring | Individually Evaluated Loans | Minimum
Balances of the assets and liabilities measured at fair value on a nonrecurring basis
Customized discounting criteria on appraisals (as a percent)	3.00%
Level 3 | Nonrecurring | Individually Evaluated Loans | Maximum
Balances of the assets and liabilities measured at fair value on a nonrecurring basis
Customized discounting criteria on appraisals (as a percent)	15.00%

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- Definition

The fair value input for estimating collateral value.

+ References

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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- Definition

Amount of credit loss expense (reversal of expense) for financing receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(11))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1

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