Loans - Nonaccrual Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	$ 16,715	$ 15,576
Real Estate
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	12,911	11,154
Real Estate | Construction & land development
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	530	621
Real Estate | Farmland
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	787	857
Real Estate | 1- 4 Family
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	2,861	2,227
Real Estate | Multifamily
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	0	0
Real Estate | Non-farm non-residential
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	8,733	7,449
Non-Real Estate
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	3,804	4,422
Non-Real Estate | Agricultural
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	2,302	3,472
Non-Real Estate | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	699	701
Non-Real Estate | Commercial leases
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	0	0
Non-Real Estate | Consumer and other
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	$ 803	$ 249