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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

X

- Definition

Amortized cost excluding accrued interest, of financing receivable 12 months after modification for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-42

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-14

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 80
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-80

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