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Fair Value of Financial Instruments - Level 3 Assets and Liabilities Measured at Fair Value (Details) $ in Thousands	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Foreclosed properties	$ 2,424	$ 3,873
Significant Unobservable Inputs (Level 3)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans - valued at collateral value	16,000	10,718
Impaired loans - valued at PV of expected cash flows	6,142	5,497
Foreclosed properties	$ 1,484	$ 1,830
Significant Unobservable Inputs (Level 3) | Appraised value; PV of expected cash flows | Discounts to reflect current market conditions, ultimate collectability, and estimated costs to sell
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans - valued at collateral value, measurement input	0.10	0.10
Foreclosed real estate, measurement input	10	10
Significant Unobservable Inputs (Level 3) | Minimum | Appraised value; PV of expected cash flows | Discounts to reflect current market conditions, ultimate collectability, and estimated costs to sell
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans - valued at PV, measurement input	0.04	0.04
Significant Unobservable Inputs (Level 3) | Maximum | Appraised value; PV of expected cash flows | Discounts to reflect current market conditions, ultimate collectability, and estimated costs to sell
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans - valued at PV, measurement input	0.11	0.11
Significant Unobservable Inputs (Level 3) | Weighted Average | Appraised value; PV of expected cash flows | Discounts to reflect current market conditions, ultimate collectability, and estimated costs to sell
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans - valued at PV, measurement input	0.0621	0.0650

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Impaired Financing Receivable, Valued At Present Value, Recorded Investment

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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.

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
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Carrying amount as of the balance sheet date of other real estate and foreclosed assets. Other real estate may include 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. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.

+ 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 http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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