Loans - Schedule of Risk Categories of Loans by Class of Loans (Details) - Commercial and Consumer Banking $ in Thousands	Sep. 30, 2023 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
2023	$ 22,627
2022	38,651
2021	7,325
2020	4,644
2019	9,731
Prior	32,184
Total Term Loans	115,162
Revolving Loans	327
Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2023	21,788
2022	38,651
2021	7,325
2020	4,577
2019	9,613
Prior	23,565
Total Term Loans	105,519
Revolving Loans	190
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2023	104
2022	0
2021	0
2020	67
2019	118
Prior	6,099
Total Term Loans	6,388
Revolving Loans	50
Residential real estate and other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2023	735
2022	0
2021	0
2020	0
2019	0
Prior	2,520
Total Term Loans	3,255
Revolving Loans	87
Pass \| Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2023	20,550
2022	34,042
2021	5,667
2020	4,577
2019	9,396
Prior	18,846
Total Term Loans	93,078
Revolving Loans	190
Pass \| Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2023	56
2022	0
2021	0
2020	67
2019	100
Prior	4,950
Total Term Loans	5,173
Revolving Loans	50
Pass \| Residential real estate and other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2023	735
2022	0
2021	0
2020	0
2019	0
Prior	2,480
Total Term Loans	3,215
Revolving Loans	87
Watch \| Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2023	1,238
2022	4,609
2021	1,658
2020	0
2019	217
Prior	2,760
Total Term Loans	10,482
Revolving Loans	0
Watch \| Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2023	48
2022	0
2021	0
2020	0
2019	18
Prior	11
Total Term Loans	77
Revolving Loans	0
Watch \| Residential real estate and other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	40
Total Term Loans	40
Revolving Loans	0
Special mention \| Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	1,577
Total Term Loans	1,577
Revolving Loans	0
Substandard \| Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	382
Total Term Loans	382
Revolving Loans	0
Substandard \| Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	1,138
Total Term Loans	1,138
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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