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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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