Loans and Allowance for Loan Losses - Credit Quality (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	$ 103,915
Year two	562,550
Year three	407,011
Year four	208,608
Year five	46,778
Prior	97,541
Revolving Loans Amortized Cost Basis	114,950
Revolving Loans Converted to Term Loans Amortized Cost Basis	721
Total	1,542,074	$ 1,521,252
Pass
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	99,850
Year two	537,497
Year three	377,151
Year four	189,388
Year five	45,338
Prior	91,844
Revolving Loans Amortized Cost Basis	108,645
Revolving Loans Converted to Term Loans Amortized Cost Basis	721
Total	1,450,434	1,426,115
Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	1,204
Year two	17,914
Year three	13,602
Year four	18,724
Year five	1,373
Prior	4,304
Revolving Loans Amortized Cost Basis	4,181
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	61,302	63,670
Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	1,072
Year two	4,182
Year three	2,732
Year four	22
Year five	46
Prior	822
Revolving Loans Amortized Cost Basis	1,864
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	10,740	11,106
PerformingTDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Total		1,661
Non- Accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	1,789
Year two	2,957
Year three	13,526
Year four	474
Year five	21
Prior	571
Revolving Loans Amortized Cost Basis	260
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	19,598	18,700
Commercial, Financial, and Agricultural
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	20,306
Year two	65,660
Year three	38,361
Year four	35,721
Year five	5,905
Prior	7,354
Revolving Loans Amortized Cost Basis	54,465
Revolving Loans Converted to Term Loans Amortized Cost Basis	220
Total	227,992	244,549
Commercial, Financial, and Agricultural | Pass
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	19,920
Year two	58,909
Year three	38,221
Year four	34,975
Year five	5,761
Prior	6,911
Revolving Loans Amortized Cost Basis	49,034
Revolving Loans Converted to Term Loans Amortized Cost Basis	220
Total	213,951	229,949
Commercial, Financial, and Agricultural | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	0
Year two	2,744
Year three	82
Year four	724
Year five	123
Prior	348
Revolving Loans Amortized Cost Basis	3,567
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	7,588	7,411
Commercial, Financial, and Agricultural | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	386
Year two	3,957
Year three	58
Year four	22
Year five	0
Prior	0
Revolving Loans Amortized Cost Basis	1,864
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	6,287	6,894
Commercial, Financial, and Agricultural | PerformingTDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Total		174
Commercial, Financial, and Agricultural | Non- Accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	0
Year two	50
Year three	0
Year four	0
Year five	21
Prior	95
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	166	121
Real Estate Construction - Residential
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	13,056
Year two	28,902
Year three	965
Year four	760
Year five	444
Prior	0
Revolving Loans Amortized Cost Basis	340
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	44,467	32,095
Real Estate Construction - Residential | Pass
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	12,681
Year two	28,902
Year three	965
Year four	760
Year five	444
Prior	0
Revolving Loans Amortized Cost Basis	340
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	44,092	32,095
Real Estate Construction - Residential | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	375
Year two	0
Year three	0
Year four	0
Year five	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	375	0
Real Estate Construction - Residential | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	0
Year two	0
Year three	0
Year four	0
Year five	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	0	0
Real Estate Construction - Residential | PerformingTDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Total		0
Real Estate Construction - Residential | Non- Accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	0
Year two	0
Year three	0
Year four	0
Year five	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	0	0
Real Estate Construction - Commercial
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	14,265
Year two	66,216
Year three	72,501
Year four	1,922
Year five	73
Prior	1,282
Revolving Loans Amortized Cost Basis	1,601
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	157,860	137,235
Real Estate Construction - Commercial | Pass
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	12,835
Year two	64,556
Year three	72,260
Year four	1,922
Year five	73
Prior	1,185
Revolving Loans Amortized Cost Basis	1,498
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	154,329	133,785
Real Estate Construction - Commercial | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	744
Year two	1,660
Year three	241
Year four	0
Year five	0
Prior	14
Revolving Loans Amortized Cost Basis	103
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	2,762	2,677
Real Estate Construction - Commercial | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	686
Year two	0
Year three	0
Year four	0
Year five	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	686	686
Real Estate Construction - Commercial | PerformingTDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Total		0
Real Estate Construction - Commercial | Non- Accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	0
Year two	0
Year three	0
Year four	0
Year five	0
Prior	83
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	83	87
Real Estate Mortgage - Residential
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	15,427
Year two	141,975
Year three	67,364
Year four	54,295
Year five	7,654
Prior	33,203
Revolving Loans Amortized Cost Basis	43,716
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	363,634	361,025
Real Estate Mortgage - Residential | Pass
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	15,427
Year two	141,707
Year three	66,939
Year four	52,760
Year five	7,517
Prior	30,034
Revolving Loans Amortized Cost Basis	43,232
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	357,616	353,121
Real Estate Mortgage - Residential | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	0
Year two	212
Year three	425
Year four	1,294
Year five	137
Prior	2,292
Revolving Loans Amortized Cost Basis	224
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	4,584	5,541
Real Estate Mortgage - Residential | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	0
Year two	0
Year three	0
Year four	0
Year five	0
Prior	520
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	520	500
Real Estate Mortgage - Residential | PerformingTDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Total		1,178
Real Estate Mortgage - Residential | Non- Accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	0
Year two	56
Year three	0
Year four	241
Year five	0
Prior	357
Revolving Loans Amortized Cost Basis	260
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	914	685
Real Estate Mortgage - Commercial
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	38,745
Year two	250,437
Year three	223,304
Year four	113,471
Year five	30,993
Prior	55,110
Revolving Loans Amortized Cost Basis	13,012
Revolving Loans Converted to Term Loans Amortized Cost Basis	501
Total	725,573	722,729
Real Estate Mortgage - Commercial | Pass
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	36,871
Year two	234,139
Year three	194,254
Year four	96,532
Year five	29,834
Prior	53,122
Revolving Loans Amortized Cost Basis	12,725
Revolving Loans Converted to Term Loans Amortized Cost Basis	501
Total	657,978	653,552
Real Estate Mortgage - Commercial | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	85
Year two	13,298
Year three	12,854
Year four	16,706
Year five	1,113
Prior	1,650
Revolving Loans Amortized Cost Basis	287
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	45,993	48,041
Real Estate Mortgage - Commercial | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	0
Year two	225
Year three	2,674
Year four	0
Year five	46
Prior	302
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	3,247	3,026
Real Estate Mortgage - Commercial | PerformingTDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Total		309
Real Estate Mortgage - Commercial | Non- Accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	1,789
Year two	2,775
Year three	13,522
Year four	233
Year five	0
Prior	36
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	18,355	17,801
Installment and Other Consumer
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	2,116
Year two	9,360
Year three	4,516
Year four	2,439
Year five	1,709
Prior	592
Revolving Loans Amortized Cost Basis	1,816
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	22,548	23,619
Installment and Other Consumer | Pass
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	2,116
Year two	9,284
Year three	4,512
Year four	2,439
Year five	1,709
Prior	592
Revolving Loans Amortized Cost Basis	1,816
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	22,468	23,613
Installment and Other Consumer | Watch
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	0
Year two	0
Year three	0
Year four	0
Year five	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	0	0
Installment and Other Consumer | Substandard
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	0
Year two	0
Year three	0
Year four	0
Year five	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	0	0
Installment and Other Consumer | PerformingTDRs
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Total		0
Installment and Other Consumer | Non- Accrual
Credit quality of the loan portfolio using internal rating system reflecting management's risk assessment
Year one	0
Year two	76
Year three	4
Year four	0
Year five	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total	$ 80	$ 6