Loans - Segregated by Class of Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 1,059,503	$ 968,814
Legacy Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	974,573	847,100
Purchased Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	84,930	121,714
Construction, land & land development
Loans and Leases Receivable Disclosure [Line Items]
Loans	121,093	96,097
Other commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans	520,391	540,239
Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans	641,484	636,336
Commercial real estate | Legacy Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	587,022	564,979
Commercial real estate | Purchased Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	54,462	71,357
Commercial real estate | Construction, land & land development
Loans and Leases Receivable Disclosure [Line Items]
Loans	121,093	96,097
Commercial real estate | Construction, land & land development | Legacy Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	109,577	83,036
Commercial real estate | Construction, land & land development | Purchased Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	11,516	13,061
Commercial real estate | Other commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans	520,391	540,239
Commercial real estate | Other commercial real estate | Legacy Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	477,445	481,943
Commercial real estate | Other commercial real estate | Purchased Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	42,946	58,296
Residential real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans	183,021	194,796
Residential real estate | Legacy Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	167,714	171,341
Residential real estate | Purchased Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	15,307	23,455
Commercial, financial, & agricultural
Loans and Leases Receivable Disclosure [Line Items]
Loans	213,380	114,360
Commercial, financial, & agricultural | Paycheck Protection Program, CARES Act
Loans and Leases Receivable Disclosure [Line Items]
Loans	101,100
Commercial, financial, & agricultural | Legacy Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	200,800	91,535
Commercial, financial, & agricultural | Purchased Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	12,580	22,825
Consumer & other
Loans and Leases Receivable Disclosure [Line Items]
Loans	21,618	23,322
Consumer & other | Legacy Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	19,037	19,245
Consumer & other | Purchased Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 2,581	$ 4,077