Fair Value of Financial Instruments and Fair Value Measurements - Quantitative Information for Financial Instruments Measured at Fair Value (Details) $ in Thousands	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned	$ 651	$ 651
Investment securities available for sale, at fair value	434,705	432,553
Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral dependent impaired loans	651	521
Level 3 \| Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral dependent impaired loans	651	521
Other real estate owned	651	651
Investment securities available for sale, at fair value	14,955	15,596
Other investments	$ 96	$ 790
Level 3 \| Nonrecurring \| Minimum \| Measurement Input, Appraised Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral dependent impaired loans, weighted average discount range	0.25	0.25
Other real estate owned, weighted average discount range	0	0
Level 3 \| Nonrecurring \| Maximum \| Measurement Input, Appraised Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral dependent impaired loans, weighted average discount range	0.50	0.50
Other real estate owned, weighted average discount range	0.20	0.20

Fair value portion of impaired loans.

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Value of input used to measure impaired loans.

+ References

No definition available.

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- Definition

Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of investments classified as other.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(12))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(f,g))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

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Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10(4))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

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- Definition

Value of input used to measure real estate owned by financial institution by financial institution which is not directly related to its business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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