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Loans - Payment Status (Amortized Cost Basis) (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Mar. 31, 2024
--- | --- | ---
Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | $ 25,453 | $ 20,285
30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 1,940 | 207
90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 419 | 1,130
Residential real estate | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 3,309 | 4,774
Residential real estate | 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 849 | 117
Residential real estate | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 0 | 499
Commercial and industrial | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 22,144 | 15,511
Commercial and industrial | 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 1,088 | 90
Commercial and industrial | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 419 | 631
Consumer | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 0 |
Consumer | 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 3 |
Consumer | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 0 |
Commercial real estate | Residential real estate | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 2,265 | 1,198
Commercial real estate | Residential real estate | 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 0 | 0
Commercial real estate | Residential real estate | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 0 | 168
Construction/land/land development | Residential real estate | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 133 | 1,570
Construction/land/land development | Residential real estate | 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 206 | 0
Construction/land/land development | Residential real estate | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 0 | 96
Residential real estate | Residential real estate | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 911 | 2,006
Residential real estate | Residential real estate | 30-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | 643 | 117
Residential real estate | Residential real estate | 90 Days or More Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total LHFI | $ 0 | $ 235

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