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Loans - Amortized Cost Basis of Collateral-Dependent Loans (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | $ 9,479 | $ 15,439
Non-Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | 2,214 | 7,067
Farmland | Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | 1,768 | 1,793
Farmland | Non-Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | 0 | 0
Owner-occupied, nonfarm nonresidential properties | Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | 247 | 285
Owner-occupied, nonfarm nonresidential properties | Non-Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | 17 | 587
Commercial and Industrial | Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | 347 | 594
Commercial and Industrial | Non-Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | 2,197 | 5,600
Obligations (other than securities and leases) of states and political subdivisions | Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | 430 |
Obligations (other than securities and leases) of states and political subdivisions | Non-Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | 0 |
Other construction loans and all land development and other land loans | Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | 1,828 | 2,272
Other construction loans and all land development and other land loans | Non-Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | 0 | 0
Multifamily (5 or more) residential properties | Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | 972 | 288
Multifamily (5 or more) residential properties | Non-Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | 0 | 0
Non-owner occupied, nonfarm nonresidential properties | Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | 3,442 | 9,072
Non-owner occupied, nonfarm nonresidential properties | Non-Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | 0 | 880
Residential Mortgages secured by first liens | Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | 445 | 1,135
Residential Mortgages secured by first liens | Non-Real Estate Collateral |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Amortized cost basis of collateral-dependent loans | $ 0 | $ 0

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