Loans - Receivables Past Due (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Non performing loans [Abstract]
Non- Accrual with no Allowance for Credit Loss	$ 1,109	$ 1,339
Non- Accrual with an Allowance for Credit Loss	2,777	2,382
Total Non- Accrual	3,886	3,721
90+ and Still Accruing	0	0
Accrued interest excluded from total	10,146	10,009
Financial Asset, Equal to or Greater than 90 Days Past Due
Non performing loans [Abstract]
Accrued interest excluded from total	0	0
Commercial and industrial
Non performing loans [Abstract]
Government guaranteed loans excluded from non-performing loans	27	29
1-4 family owner occupied - non-jumbo
Non performing loans [Abstract]
Government guaranteed loans excluded from non-performing loans	2,303	1,631
Commercial
Non performing loans [Abstract]
Accrued interest excluded from total	4,587	4,409
Commercial | Commercial and industrial
Non performing loans [Abstract]
Non- Accrual with no Allowance for Credit Loss	0	0
Non- Accrual with an Allowance for Credit Loss	9	9
Total Non- Accrual	9	9
90+ and Still Accruing	0	0
Accrued interest excluded from total	2,261	2,046
Commercial | Commercial real estate
Non performing loans [Abstract]
Non- Accrual with no Allowance for Credit Loss	0	0
Non- Accrual with an Allowance for Credit Loss	0	0
Total Non- Accrual	0	0
90+ and Still Accruing	0	0
Accrued interest excluded from total	2,326	2,363
Mortgage
Non performing loans [Abstract]
Accrued interest excluded from total	4,094	4,116
Mortgage | 1-4 family owner occupied - jumbo
Non performing loans [Abstract]
Non- Accrual with no Allowance for Credit Loss	0	0
Non- Accrual with an Allowance for Credit Loss	0	0
Total Non- Accrual	0	0
90+ and Still Accruing	0	0
Accrued interest excluded from total	1,906	1,892
Mortgage | 1-4 family owner occupied - non-jumbo
Non performing loans [Abstract]
Non- Accrual with no Allowance for Credit Loss	729	1,077
Non- Accrual with an Allowance for Credit Loss	1,502	852
Total Non- Accrual	2,231	1,929
90+ and Still Accruing	0	0
Accrued interest excluded from total	883	953
Mortgage | 1-4 family non-owner occupied
Non performing loans [Abstract]
Non- Accrual with no Allowance for Credit Loss	273	152
Non- Accrual with an Allowance for Credit Loss	232	323
Total Non- Accrual	505	475
90+ and Still Accruing	0	0
Accrued interest excluded from total	552	558
Mortgage | 1-4 family - 2nd lien
Non performing loans [Abstract]
Non- Accrual with no Allowance for Credit Loss	0	0
Non- Accrual with an Allowance for Credit Loss	390	562
Total Non- Accrual	390	562
90+ and Still Accruing	0	0
Accrued interest excluded from total	622	588
Mortgage | Resort lending
Non performing loans [Abstract]
Non- Accrual with no Allowance for Credit Loss	107	110
Non- Accrual with an Allowance for Credit Loss	0	38
Total Non- Accrual	107	148
90+ and Still Accruing	0	0
Accrued interest excluded from total	131	125
Installment
Non performing loans [Abstract]
Accrued interest excluded from total	1,465	1,484
Installment | Boat lending
Non performing loans [Abstract]
Non- Accrual with no Allowance for Credit Loss	0	0
Non- Accrual with an Allowance for Credit Loss	307	380
Total Non- Accrual	307	380
90+ and Still Accruing	0	0
Accrued interest excluded from total	597	601
Installment | Recreational vehicle lending
Non performing loans [Abstract]
Non- Accrual with no Allowance for Credit Loss	0	0
Non- Accrual with an Allowance for Credit Loss	181	30
Total Non- Accrual	181	30
90+ and Still Accruing	0	0
Accrued interest excluded from total	624	648
Installment | Other
Non performing loans [Abstract]
Non- Accrual with no Allowance for Credit Loss	0	0
Non- Accrual with an Allowance for Credit Loss	156	188
Total Non- Accrual	156	188
90+ and Still Accruing	0	0
Accrued interest excluded from total	244	235
Non-performing TDR's
Non performing loans [Abstract]
Total Non- Performing Loans	3,886	3,721
Accrued interest excluded from total	0	0
Non-performing TDR's | Commercial | Commercial and industrial
Non performing loans [Abstract]
Total Non- Performing Loans	9	9
Non-performing TDR's | Commercial | Commercial real estate
Non performing loans [Abstract]
Total Non- Performing Loans	0	0
Non-performing TDR's | Mortgage | 1-4 family owner occupied - jumbo
Non performing loans [Abstract]
Total Non- Performing Loans	0	0
Non-performing TDR's | Mortgage | 1-4 family owner occupied - non-jumbo
Non performing loans [Abstract]
Total Non- Performing Loans	2,231	1,929
Non-performing TDR's | Mortgage | 1-4 family non-owner occupied
Non performing loans [Abstract]
Total Non- Performing Loans	505	475
Non-performing TDR's | Mortgage | 1-4 family - 2nd lien
Non performing loans [Abstract]
Total Non- Performing Loans	390	562
Non-performing TDR's | Mortgage | Resort lending
Non performing loans [Abstract]
Total Non- Performing Loans	107	148
Non-performing TDR's | Installment | Boat lending
Non performing loans [Abstract]
Total Non- Performing Loans	307	380
Non-performing TDR's | Installment | Recreational vehicle lending
Non performing loans [Abstract]
Total Non- Performing Loans	181	30
Non-performing TDR's | Installment | Other
Non performing loans [Abstract]
Total Non- Performing Loans	$ 156	$ 188