Fair Value of Financial Instruments - Summary Of Carrying Amounts And Estimated Fair Values By Fair Value Hierarchy Of Certain Financial Instruments (Details) - USD ($) $ in Thousands |
Sep. 30, 2026 |
Mar. 31, 2026 |
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| Carrying Amount | ||
| Financial assets: | ||
| Loans, net | $ 440,542 | $ 442,537 |
| Held-to-maturity securities | 3,150 | |
| Mortgage servicing rights | 415 | |
| Financial liabilities: | ||
| Interest-bearing deposits | 400,793 | 395,851 |
| Estimated Fair Value | ||
| Financial assets: | ||
| Loans, net | 431,999 | 435,562 |
| Held-to-maturity securities | 3,132 | |
| Mortgage servicing rights | 1,212 | |
| Financial liabilities: | ||
| Interest-bearing deposits | 341,082 | 350,037 |
| Held-to-maturity securities | 3,132 | 178 |
| Mortgage servicing rights | 417 | 415 |
| Level 2 | ||
| Financial assets: | ||
| Held-to-maturity securities | 3,132 | |
| Mortgage servicing rights | 1,212 | |
| Financial liabilities: | ||
| Interest-bearing deposits | 341,082 | 350,037 |
| Level 3 | ||
| Financial assets: | ||
| Loans, net | $ 431,999 | $ 435,562 |
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- Definition Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- References No definition available.
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- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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