Loans and Allowance for Loan Losses - Aging Analysis (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	$ 128,397
Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	109,918
Accruing 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	1,013
Accruing 90 Days or Greater Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Non-accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	17,466
Total commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	116,588
Total commercial and industrial | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	102,495
Total commercial and industrial | Accruing 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	829
Total commercial and industrial | Accruing 90 Days or Greater Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total commercial and industrial | Non-accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	13,264
Total commercial and industrial | Commercial, financial and agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	42,801
Total commercial and industrial | Commercial, financial and agricultural | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	29,386
Total commercial and industrial | Commercial, financial and agricultural | Accruing 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	829
Total commercial and industrial | Commercial, financial and agricultural | Accruing 90 Days or Greater Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total commercial and industrial | Commercial, financial and agricultural | Non-accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	12,586
Total commercial and industrial | Owner-occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	73,787
Total commercial and industrial | Owner-occupied | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	73,109
Total commercial and industrial | Owner-occupied | Accruing 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total commercial and industrial | Owner-occupied | Accruing 90 Days or Greater Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total commercial and industrial | Owner-occupied | Non-accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	678
Total commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	6,798
Total commercial real estate | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	4,886
Total commercial real estate | Accruing 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total commercial real estate | Accruing 90 Days or Greater Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total commercial real estate | Non-accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	1,912
Total commercial real estate | Investment properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	2,848
Total commercial real estate | Investment properties | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	2,533
Total commercial real estate | Investment properties | Accruing 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total commercial real estate | Investment properties | Accruing 90 Days or Greater Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total commercial real estate | Investment properties | Non-accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	315
Total commercial real estate | 1-4 family properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	2,804
Total commercial real estate | 1-4 family properties | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	1,207
Total commercial real estate | 1-4 family properties | Accruing 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total commercial real estate | 1-4 family properties | Accruing 90 Days or Greater Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total commercial real estate | 1-4 family properties | Non-accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	1,597
Total commercial real estate | Land and development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	1,146
Total commercial real estate | Land and development | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	1,146
Total commercial real estate | Land and development | Accruing 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total commercial real estate | Land and development | Accruing 90 Days or Greater Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total commercial real estate | Land and development | Non-accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	5,011
Total consumer | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	2,537
Total consumer | Accruing 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	184
Total consumer | Accruing 90 Days or Greater Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total consumer | Non-accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	2,290
Total consumer | Consumer mortgages
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	2,578
Total consumer | Consumer mortgages | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	1,184
Total consumer | Consumer mortgages | Accruing 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total consumer | Consumer mortgages | Accruing 90 Days or Greater Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total consumer | Consumer mortgages | Non-accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	1,394
Total consumer | Home equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	714
Total consumer | Home equity | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	714
Total consumer | Home equity | Accruing 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total consumer | Home equity | Accruing 90 Days or Greater Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total consumer | Home equity | Non-accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total consumer | Credit cards
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total consumer | Credit cards | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total consumer | Credit cards | Accruing 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total consumer | Credit cards | Accruing 90 Days or Greater Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total consumer | Credit cards | Non-accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total consumer | Other consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	1,719
Total consumer | Other consumer loans | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	639
Total consumer | Other consumer loans | Accruing 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	184
Total consumer | Other consumer loans | Accruing 90 Days or Greater Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	0
Total consumer | Other consumer loans | Non-accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis of loans, aging analysis	$ 896