Loans and Allowance for Credit Losses on Loans - Schedule of Nonaccrual and Past Due Loans by Class (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	$ 1,428,216	$ 1,452,899
Total Loans	1,431,491	1,455,159
90 or More Days Past Due Still Accruing	411	181
Nonaccrual Loans	4,156	5,645
Nonaccruals with No Allowance for Credit Losses	4,156	5,645
Nonaccrual with an Allowance for Credit Losses	0	0
Construction & Secured by Farmland
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	82,692	84,145
Total Loans	82,692	84,145
Nonaccrual Loans	0	95
Nonaccruals with No Allowance for Credit Losses	0	95
Nonaccrual with an Allowance for Credit Losses	0	0
HELOCs
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	46,310	47,674
Total Loans	46,329	47,674
Nonaccrual Loans	0	15
Nonaccruals with No Allowance for Credit Losses	0	15
Nonaccrual with an Allowance for Credit Losses	0	0
Residential First Lien - Investor
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	112,909	116,334
Total Loans	113,813	117,431
Nonaccrual Loans	1,063	1,085
Nonaccruals with No Allowance for Credit Losses	1,063	1,085
Nonaccrual with an Allowance for Credit Losses	0	0
Residential First Lien - Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	181,037	177,953
Total Loans	181,323	178,180
Nonaccrual Loans	224	228
Nonaccruals with No Allowance for Credit Losses	224	228
Nonaccrual with an Allowance for Credit Losses	0	0
Residential Junior Liens
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	12,681	12,822
Total Loans	12,690	12,831
Nonaccrual Loans	9	11
Nonaccruals with No Allowance for Credit Losses	9	11
Nonaccrual with an Allowance for Credit Losses	0	0
Commercial - Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	254,737	251,456
Total Loans	254,744	251,456
Nonaccrual Loans	7	22
Nonaccruals with No Allowance for Credit Losses	7	22
Nonaccrual with an Allowance for Credit Losses	0	0
Commercial - Non-Owner Occupied & Multifamily
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	343,897	348,879
Total Loans	344,192	348,879
Nonaccrual Loans	2,336	3,625
Nonaccruals with No Allowance for Credit Losses	2,336	3,625
Nonaccrual with an Allowance for Credit Losses	0	0
SBA PPP loans
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	45	51
Total Loans	45	51
Nonaccrual Loans	0	0
Nonaccruals with No Allowance for Credit Losses	0	0
Nonaccrual with an Allowance for Credit Losses	0	0
Other Commercial And Industrial Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	99,905	107,742
Total Loans	100,067	107,777
90 or More Days Past Due Still Accruing	159	14
Nonaccrual Loans	3	12
Nonaccruals with No Allowance for Credit Losses	3	12
Nonaccrual with an Allowance for Credit Losses	0	0
Marine loans
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	245,923	250,616
Total Loans	247,042	251,168
Nonaccrual Loans	514	552
Nonaccruals with No Allowance for Credit Losses	514	552
Nonaccrual with an Allowance for Credit Losses	0	0
Consumer loans
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	34,055	42,079
Total Loans	34,529	42,419
90 or More Days Past Due Still Accruing	252	167
Nonaccrual Loans	0	0
Nonaccruals with No Allowance for Credit Losses	0	0
Nonaccrual with an Allowance for Credit Losses	0	0
Overdrafts
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	1,559	253
Total Loans	1,559	253
Nonaccrual Loans	0	0
Nonaccruals with No Allowance for Credit Losses	0	0
Nonaccrual with an Allowance for Credit Losses	0	0
Other Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	12,466	12,895
Total Loans	12,466	12,895
Nonaccrual Loans	0	0
Nonaccruals with No Allowance for Credit Losses	0	0
Nonaccrual with an Allowance for Credit Losses	0	0
30-59 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	2,172	1,026
30-59 Days Past Due | Residential First Lien - Investor
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	904	844
30-59 Days Past Due | Residential First Lien - Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	139
30-59 Days Past Due | Commercial - Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	7
30-59 Days Past Due | Commercial - Non-Owner Occupied & Multifamily
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	295
30-59 Days Past Due | Other Commercial And Industrial Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans		9
30-59 Days Past Due | Marine loans
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	605
30-59 Days Past Due | Consumer loans
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	222	173
60 - 89 Days Past due
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	19	331
60 - 89 Days Past due | HELOCs
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	19
60 - 89 Days Past due | Residential First Lien - Investor
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans		253
60 - 89 Days Past due | Residential First Lien - Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans		78
90 or More Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	1,084	903
90 or More Days Past Due | Residential First Lien - Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	147	149
90 or More Days Past Due | Residential Junior Liens
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	9	9
90 or More Days Past Due | Other Commercial And Industrial Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	162	26
90 or More Days Past Due | Marine loans
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	514	552
90 or More Days Past Due | Consumer loans
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	252	167
Financial Asset, Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	3,275	2,260
Financial Asset, Past Due | HELOCs
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	19
Financial Asset, Past Due | Residential First Lien - Investor
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	904	1,097
Financial Asset, Past Due | Residential First Lien - Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	286	227
Financial Asset, Past Due | Residential Junior Liens
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	9	9
Financial Asset, Past Due | Commercial - Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	7
Financial Asset, Past Due | Commercial - Non-Owner Occupied & Multifamily
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	295
Financial Asset, Past Due | Other Commercial And Industrial Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	162	35
Financial Asset, Past Due | Marine loans
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	1,119	552
Financial Asset, Past Due | Consumer loans
Financing Receivable Recorded Investment Past Due [Line Items]
Current loans	$ 474	$ 340