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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 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 + Details
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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 + Details
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