PCI Loans and Related Allowance for Loan Losses (Tables) - Covered Loans [Member]

9 Months Ended

Sep. 30, 2020

Summary of PCI Loans

	September 30, 2020				December 31, 2019
			% of PCI				% of PCI
	Amount		Loans		Amount		Loans
Mortgage loans on real estate:
Residential 1‑4 family	$	24,664	90.86	%	$	29,465	90.58	%
Commercial		457	1.68			490	1.51
Construction and land development		846	3.12			1,172	3.60
Second mortgages		963	3.55			1,169	3.59
Multifamily		216	0.79			232	0.72
Total real estate loans		27,146	100.00			32,528	100.00
Total PCI loans	$	27,146	100.00	%	$	32,528	100.00	%

Summary of Purchased Credit Impaired Loans Collectively Evaluated for Impairment in the Allowance for Loan Losses

The following table presents information on the PCI loans collectively evaluated for impairment in the allowance for loan losses at September 30, 2020 and December 31, 2019 (dollars in thousands):

	September 30, 2020				December 31, 2019
	Allowance		Recorded				Recorded
	for loan		investment in		Allowance for		investment in
	losses		loans		loan losses		loans
Mortgage loans on real estate:
Residential 1‑4 family	$	156	$	24,664	$	156	$	29,465
Commercial		—		457		—		490
Construction and land development		—		846		—		1,172
Second mortgages		—		963		—		1,169
Multifamily		—		216		—		232
Total real estate loans		156		27,146		156		32,528
Total PCI loans	$	156	$	27,146	$	156	$	32,528

Summary of Changes in the Accretable Yield

The change in the accretable yield balance for the nine months ended September 30, 2020 and the year ended December 31, 2019, is as follows (dollars in thousands):

Balance, January 1, 2019	$	38,107
Accretion		(6,010)
Reclassification from nonaccretable difference		1,369
Balance, December 31, 2019	$	33,466
Accretion		(3,110)
Reclassification to nonaccretable difference		(101)
Balance, September 30, 2020	$	30,255