Loans - Segregated by Class of Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 1,113,977	$ 968,814
Legacy Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	988,714	847,100
Purchased Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	125,263	121,714
Construction, land and land development
Loans and Leases Receivable Disclosure [Line Items]
Loans	131,797	96,097
Other commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans	518,141	540,239
Residential real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans	188,339	194,796
Residential real estate | Legacy Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	160,418	171,341
Residential real estate | Purchased Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	27,921	23,455
Commercial, financial, & agricultural
Loans and Leases Receivable Disclosure [Line Items]
Loans	250,915	114,360
Commercial, financial, & agricultural | Legacy Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	235,862	91,535
Commercial, financial, & agricultural | Purchased Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	15,053	22,825
Consumer and other
Loans and Leases Receivable Disclosure [Line Items]
Loans	24,785	23,322
Consumer and other | Legacy Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	21,508	19,245
Consumer and other | Purchased Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	3,277	4,077
Commercial Real Estate Portfolio Segment
Loans and Leases Receivable Disclosure [Line Items]
Loans	649,938	636,336
Commercial Real Estate Portfolio Segment | Legacy Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	570,926	564,979
Commercial Real Estate Portfolio Segment | Purchased Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	79,012	71,357
Commercial Real Estate Portfolio Segment | Construction, land and land development
Loans and Leases Receivable Disclosure [Line Items]
Loans	131,797	96,097
Commercial Real Estate Portfolio Segment | Construction, land and land development | Legacy Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	104,153	83,036
Commercial Real Estate Portfolio Segment | Construction, land and land development | Purchased Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	27,644	13,061
Commercial Real Estate Portfolio Segment | Other commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans	518,141	540,239
Commercial Real Estate Portfolio Segment | Other commercial real estate | Legacy Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	466,773	481,943
Commercial Real Estate Portfolio Segment | Other commercial real estate | Purchased Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 51,368	$ 58,296