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Loans and Allowance - Summary of Troubled Debt Restructurings by Modification Type (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modification	$ 1,551	$ 164	$ 1,551	$ 253
Term Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modification	1,217		1,217	0
Rate Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modification	111		111	89
Combination
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modification	223	164	223	164
Commercial and industrial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modification	652		652
Commercial and industrial loans | Term Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modification	652		652
Commercial and industrial loans | Rate Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modification	0
Commercial and industrial loans | Combination
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modification	0		0
Commercial and farmland
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modification	565		565
Commercial and farmland | Term Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modification	565		565
Commercial and farmland | Combination
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modification	0		0
Residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modification	334	164	334	253
Residential | Term Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modification			0
Residential | Rate Modification
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modification	111		111	89
Residential | Combination
Financing Receivable, Troubled Debt Restructuring [Line Items]
Modification	$ 223	$ 164	$ 223	$ 164

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