Loans - Schedule of Risk Categories of Loans by Class of Loans (Details) - Commercial and consumer banking: $ in Thousands	Mar. 31, 2026 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
2026	$ 1,125
2025	35,580
2024	35,435
2023	23,864
2022	32,817
Prior	37,767
Total Term Loans	166,588
Revolving Loans	9,038
Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2026	1,125
2025	35,317
2024	35,322
2023	23,828
2022	32,817
Prior	30,480
Total Term Loans	158,889
Revolving Loans	158
Commercial real estate \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2026	1,125
2025	35,317
2024	32,120
2023	18,702
2022	23,635
Prior	26,791
Total Term Loans	137,690
Revolving Loans	158
Commercial real estate \| Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	0
2024	766
2023	0
2022	6,576
Prior	1,166
Total Term Loans	8,508
Revolving Loans	0
Commercial real estate \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	0
2024	2,436
2023	2,917
2022	0
Prior	341
Total Term Loans	5,694
Revolving Loans	0
Commercial real estate \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	0
2024	0
2023	2,209
2022	2,606
Prior	2,182
Total Term Loans	6,997
Revolving Loans	0
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	0
2024	113
2023	36
2022	0
Prior	2,766
Total Term Loans	2,915
Revolving Loans	1,145
Commercial and industrial \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	0
2024	113
2023	36
2022	0
Prior	2,650
Total Term Loans	2,799
Revolving Loans	1,145
Commercial and industrial \| Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	0
2024	0
2023	0
2022	0
Prior	0
Total Term Loans	0
Revolving Loans	0
Commercial and industrial \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	0
2024	0
2023	0
2022	0
Prior	0
Total Term Loans	0
Revolving Loans	0
Commercial and industrial \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	0
2024	0
2023	0
2022	0
Prior	116
Total Term Loans	116
Revolving Loans	0
Residential real estate and other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	263
2024	0
2023	0
2022	0
Prior	4,521
Total Term Loans	4,784
Revolving Loans	7,735
Residential real estate and other consumer \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	263
2024	0
2023	0
2022	0
Prior	4,521
Total Term Loans	4,784
Revolving Loans	7,735
Residential real estate and other consumer \| Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	0
2024	0
2023	0
2022	0
Prior	0
Total Term Loans	0
Revolving Loans	0
Residential real estate and other consumer \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	0
2024	0
2023	0
2022	0
Prior	0
Total Term Loans	0
Revolving Loans	0
Residential real estate and other consumer \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2026	0
2025	0
2024	0
2023	0
2022	0
Prior	0
Total Term Loans	0
Revolving Loans	$ 0

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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