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Loans and Allowance for Credit Losses - Performance of Loans Modified (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	$ 0	$ 0
60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	0	55
90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	0	0
Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	0	55
Real Estate Loan | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	0	0
Real Estate Loan | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	0	55
Real Estate Loan | 90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	0	0
Real Estate Loan | Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	0	55
Commercial Real Estate | Real Estate Loan | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	0	0
Commercial Real Estate | Real Estate Loan | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	0	55
Commercial Real Estate | Real Estate Loan | 90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	0	0
Commercial Real Estate | Real Estate Loan | Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable Modifications Performance Recorded Investment	$ 0	$ 55

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