Fair Value - Quantitative Information about Level 3 Fair Value Measurements for Financial Instruments Measured at Fair Value on Non Recurring Basis (Details) - Fair Value, Measurements, Non Recurring - Significant Unobservable Inputs (Level 3) $ in Thousands	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Farmland
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	$ 920	$ 659
Farmland | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique	0.60
Farmland | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique	0.60
Farmland | Measurement Input, Loss Severity | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0.45
Farmland | Measurement Input, Loss Severity | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0.54
Farmland | Measurement Input, Loss Severity | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0.47
Owner-occupied, nonfarm nonresidential properties
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	$ 194	$ 329
Owner-occupied, nonfarm nonresidential properties | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique	0
Owner-occupied, nonfarm nonresidential properties | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique	0.60
Owner-occupied, nonfarm nonresidential properties | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique	0.57
Owner-occupied, nonfarm nonresidential properties | Measurement Input, Loss Severity | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0.60
Owner-occupied, nonfarm nonresidential properties | Measurement Input, Loss Severity | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0.90
Owner-occupied, nonfarm nonresidential properties | Measurement Input, Loss Severity | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0.80
Commercial and Industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	$ 3,102	$ 3,680
Commercial and Industrial | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique	0
Commercial and Industrial | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique	0.59
Commercial and Industrial | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique	0.42
Commercial and Industrial | Measurement Input, Loss Severity | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0
Commercial and Industrial | Measurement Input, Loss Severity | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		1
Commercial and Industrial | Measurement Input, Loss Severity | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0.39
Other construction loans and all land development and other land loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	$ 248	$ 1,790
Other construction loans and all land development and other land loans | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique	0.25
Other construction loans and all land development and other land loans | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique	0.25
Other construction loans and all land development and other land loans | Measurement Input, Loss Severity | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0.25
Other construction loans and all land development and other land loans | Measurement Input, Loss Severity | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0.41
Other construction loans and all land development and other land loans | Measurement Input, Loss Severity | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0.28
Multifamily (5 or more) residential properties
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	$ 627	$ 0
Multifamily (5 or more) residential properties | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique	0
Multifamily (5 or more) residential properties | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique	0.57
Multifamily (5 or more) residential properties | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique	0.26
Multifamily (5 or more) residential properties | Measurement Input, Loss Severity | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0.58
Multifamily (5 or more) residential properties | Measurement Input, Loss Severity | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0.58
Non-owner occupied, nonfarm nonresidential properties
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	$ 2,889	$ 9,622
Non-owner occupied, nonfarm nonresidential properties | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique	0.25
Non-owner occupied, nonfarm nonresidential properties | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique	0.60
Non-owner occupied, nonfarm nonresidential properties | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique	0.34
Non-owner occupied, nonfarm nonresidential properties | Measurement Input, Loss Severity | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0.25
Non-owner occupied, nonfarm nonresidential properties | Measurement Input, Loss Severity | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		1
Non-owner occupied, nonfarm nonresidential properties | Measurement Input, Loss Severity | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0.29
Residential Mortgages secured by first liens
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value		$ 659
Residential Mortgages secured by first liens | Measurement Input, Loss Severity | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0.31
Residential Mortgages secured by first liens | Measurement Input, Loss Severity | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation technique		0.31