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Loans and Allowance for Loan Losses - Schedule of Current, Accruing Past Due, and Non-Accrual Loans on an Amortized Cost Basis by Loan Portfolio Class (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Mar. 31, 2024
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	$ 112,556	$ 178,714
Current
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	56,825	95,683
Accruing 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	2,621	511
Accruing 90 Days or Greater Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	0	0
Non-accrual
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	53,110	82,520
Total commercial and industrial
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	36,623	169,131
Total commercial and industrial | Current
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	21,000	88,491
Total commercial and industrial | Accruing 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	2,577	79
Total commercial and industrial | Accruing 90 Days or Greater Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	0	0
Total commercial and industrial | Non-accrual
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	13,046	80,561
Total commercial and industrial | Commercial, financial and agricultural
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	22,941	134,551
Total commercial and industrial | Commercial, financial and agricultural | Current
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	7,318	54,662
Total commercial and industrial | Commercial, financial and agricultural | Accruing 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	2,577	79
Total commercial and industrial | Commercial, financial and agricultural | Accruing 90 Days or Greater Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	0	0
Total commercial and industrial | Commercial, financial and agricultural | Non-accrual
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	13,046	79,810
Total commercial and industrial | Owner-occupied
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	13,682	34,580
Total commercial and industrial | Owner-occupied | Current
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	13,682	33,829
Total commercial and industrial | Owner-occupied | Accruing 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	0	0
Total commercial and industrial | Owner-occupied | Accruing 90 Days or Greater Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	0	0
Total commercial and industrial | Owner-occupied | Non-accrual
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	0	751
Total commercial real estate
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	67,998	4,654
Total commercial real estate | Current
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	35,216	4,312
Total commercial real estate | Accruing 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	0	0
Total commercial real estate | Accruing 90 Days or Greater Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	0	0
Total commercial real estate | Non-accrual
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	32,782	342
Total commercial real estate | Investment properties
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	67,998	3,130
Total commercial real estate | Investment properties | Current
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	35,216	3,130
Total commercial real estate | Investment properties | Accruing 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	0	0
Total commercial real estate | Investment properties | Accruing 90 Days or Greater Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	0	0
Total commercial real estate | Investment properties | Non-accrual
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	32,782	0
Total commercial real estate | 1-4 family properties
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis		407
Total commercial real estate | 1-4 family properties | Current
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis		65
Total commercial real estate | 1-4 family properties | Accruing 30-89 Days Past Due
Financing Receivable, Modified [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, Modified [Line Items]
Amortized cost basis of loans, aging analysis		0
Total commercial real estate | 1-4 family properties | Non-accrual
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis		342
Total commercial real estate | Land and development
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis		1,117
Total commercial real estate | Land and development | Current
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis		1,117
Total commercial real estate | Land and development | Accruing 30-89 Days Past Due
Financing Receivable, Modified [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, Modified [Line Items]
Amortized cost basis of loans, aging analysis		0
Total commercial real estate | Land and development | Non-accrual
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis		0
Total consumer
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	7,935	4,929
Total consumer | Current
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	609	2,880
Total consumer | Accruing 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	44	432
Total consumer | Accruing 90 Days or Greater Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	0	0
Total consumer | Non-accrual
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	7,282	1,617
Total consumer | Consumer mortgages
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	6,915	2,787
Total consumer | Consumer mortgages | Current
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	87	1,230
Total consumer | Consumer mortgages | Accruing 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	0	187
Total consumer | Consumer mortgages | Accruing 90 Days or Greater Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	0	0
Total consumer | Consumer mortgages | Non-accrual
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	6,828	1,370
Total consumer | Home equity
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis		618
Total consumer | Home equity | Current
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis		618
Total consumer | Home equity | Accruing 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis		0
Total consumer | Home equity | Accruing 90 Days or Greater Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis		0
Total consumer | Home equity | Non-accrual
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis		0
Total consumer | Other consumer loans
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	1,020	1,524
Total consumer | Other consumer loans | Current
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	522	1,032
Total consumer | Other consumer loans | Accruing 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	44	245
Total consumer | Other consumer loans | Accruing 90 Days or Greater Past Due
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	0	0
Total consumer | Other consumer loans | Non-accrual
Financing Receivable, Modified [Line Items]
Amortized cost basis of loans, aging analysis	$ 454	$ 247

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