Fair Value Measurements - Quantitative Information About Level III Significant Unobservable Inputs (Details) $ in Thousands	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Non-recurring \| Impaired loans
Quantitative Information about Level III Fair Value Measurements
Assets, fair value	$ 15,114	$ 14,098
Non-recurring \| Impaired loans \| Level III
Quantitative Information about Level III Fair Value Measurements
Assets, fair value	15,114	14,098
Non-recurring \| Other real estate owned
Quantitative Information about Level III Fair Value Measurements
Assets, fair value	3,442	5,730
Non-recurring \| Other real estate owned \| Level III
Quantitative Information about Level III Fair Value Measurements
Assets, fair value	3,442	5,730
Recurring \| Municipal Securities \| Level III
Quantitative Information about Level III Fair Value Measurements
Assets, fair value	$ 41,414	$ 43,679
Appraisal adjustments \| Non-recurring \| Impaired loans \| Appraisal of collateral \| Level III \| Minimum
Quantitative Information about Level III Fair Value Measurements
Impaired loans	0.20	0.20
Appraisal adjustments \| Non-recurring \| Impaired loans \| Appraisal of collateral \| Level III \| Maximum
Quantitative Information about Level III Fair Value Measurements
Impaired loans	0.62	0.62
Appraisal adjustments \| Non-recurring \| Other real estate owned \| Appraisal of collateral \| Level III \| Minimum
Quantitative Information about Level III Fair Value Measurements
Other real estate owned	0.20	0.20
Appraisal adjustments \| Non-recurring \| Other real estate owned \| Appraisal of collateral \| Level III \| Maximum
Quantitative Information about Level III Fair Value Measurements
Other real estate owned	0.30	0.30
Appraisal adjustments \| Recurring \| Municipal Securities \| Appraisal of bond \| Level III \| Minimum
Quantitative Information about Level III Fair Value Measurements
Municipal Securities	0.05	0.05
Appraisal adjustments \| Recurring \| Municipal Securities \| Appraisal of bond \| Level III \| Maximum
Quantitative Information about Level III Fair Value Measurements
Municipal Securities	0.15	0.15
Liquidation expense \| Non-recurring \| Impaired loans \| Appraisal of collateral \| Level III \| Minimum
Quantitative Information about Level III Fair Value Measurements
Impaired loans	0.05	0.05
Liquidation expense \| Non-recurring \| Impaired loans \| Appraisal of collateral \| Level III \| Maximum
Quantitative Information about Level III Fair Value Measurements
Impaired loans	0.10	0.10
Liquidation expense \| Non-recurring \| Other real estate owned \| Appraisal of collateral \| Level III \| Minimum
Quantitative Information about Level III Fair Value Measurements
Other real estate owned	0.05	0.05
Liquidation expense \| Non-recurring \| Other real estate owned \| Appraisal of collateral \| Level III \| Maximum
Quantitative Information about Level III Fair Value Measurements
Other real estate owned	0.10	0.10

Impaired Loans, Measurement Input

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

+ Details

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- Definition

Value of input used to measure 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/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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- Definition

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.

+ Details

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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

+ Details

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