Loans, Amortized Cost of Collateral-dependent Loans by Class (Details) - USD ($) $ in Thousands		Sep. 30, 2021		Dec. 31, 2019
Collateral-dependent Loans by Class [Abstract]
Total loans		$ 2,883,978
Allowance for credit losses		46,799	[1]	$ 26,148
Accrued interest excluded from total		7,028
Collateral Dependent Loans [Member]
Collateral-dependent Loans by Class [Abstract]
Allowance for credit losses		903
Real Estate [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		2,987
Accrued interest excluded from total		0
Other Loan [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		847
Accrued interest excluded from total		1
Commercial [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		1,222,802
Allowance for credit losses		9,876		7,922
Accrued interest excluded from total		2,699
Commercial [Member] | Commercial and Industrial [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		625,192
Accrued interest excluded from total		1,627
Commercial [Member] | Commercial and Industrial [Member] | Collateral Dependent Loans [Member]
Collateral-dependent Loans by Class [Abstract]
Allowance for credit losses		235
Commercial [Member] | Commercial and Industrial [Member] | Real Estate [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		87
Commercial [Member] | Commercial and Industrial [Member] | Other Loan [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		559
Commercial [Member] | Commercial Real Estate [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		597,610
Accrued interest excluded from total		1,072
Commercial [Member] | Commercial Real Estate [Member] | Collateral Dependent Loans [Member]
Collateral-dependent Loans by Class [Abstract]
Allowance for credit losses		30
Commercial [Member] | Commercial Real Estate [Member] | Real Estate [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		131
Commercial [Member] | Commercial Real Estate [Member] | Other Loan [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		0
Mortgage [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans	[2]	1,100,992
Allowance for credit losses		19,175		8,216
Accrued interest excluded from total	[2]	2,998
Mortgage [Member] | 1-4 Family Owner Occupied - Jumbo [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans	[2]	537,311
Accrued interest excluded from total	[2]	1,233
Mortgage [Member] | 1-4 Family Owner Occupied - Jumbo [Member] | Collateral Dependent Loans [Member]
Collateral-dependent Loans by Class [Abstract]
Allowance for credit losses		0
Mortgage [Member] | 1-4 Family Owner Occupied - Jumbo [Member] | Real Estate [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		607
Mortgage [Member] | 1-4 Family Owner Occupied - Jumbo [Member] | Other Loan [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		0
Mortgage [Member] | 1-4 Family Owner Occupied - Non-jumbo [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans	[2]	249,220
Accrued interest excluded from total	[2]	821
Mortgage [Member] | 1-4 Family Owner Occupied - Non-jumbo [Member] | Collateral Dependent Loans [Member]
Collateral-dependent Loans by Class [Abstract]
Allowance for credit losses		254
Mortgage [Member] | 1-4 Family Owner Occupied - Non-jumbo [Member] | Real Estate [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		848
Mortgage [Member] | 1-4 Family Owner Occupied - Non-jumbo [Member] | Other Loan [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		0
Mortgage [Member] | 1-4 Family Non-owner Occupied [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans	[2]	176,796
Accrued interest excluded from total	[2]	495
Mortgage [Member] | 1-4 Family Non-owner Occupied [Member] | Collateral Dependent Loans [Member]
Collateral-dependent Loans by Class [Abstract]
Allowance for credit losses		99
Mortgage [Member] | 1-4 Family Non-owner Occupied [Member] | Real Estate [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		560
Mortgage [Member] | 1-4 Family Non-owner Occupied [Member] | Other Loan [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		0
Mortgage [Member] | 1-4 Family - 2nd Lien [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans	[2]	87,694
Accrued interest excluded from total	[2]	297
Mortgage [Member] | 1-4 Family - 2nd Lien [Member] | Collateral Dependent Loans [Member]
Collateral-dependent Loans by Class [Abstract]
Allowance for credit losses		104
Mortgage [Member] | 1-4 Family - 2nd Lien [Member] | Real Estate [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		476
Mortgage [Member] | 1-4 Family - 2nd Lien [Member] | Other Loan [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		0
Mortgage [Member] | Resort Lending [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans	[2]	49,971
Accrued interest excluded from total	[2]	152
Mortgage [Member] | Resort Lending [Member] | Collateral Dependent Loans [Member]
Collateral-dependent Loans by Class [Abstract]
Allowance for credit losses		79
Mortgage [Member] | Resort Lending [Member] | Real Estate [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		278
Mortgage [Member] | Resort Lending [Member] | Other Loan [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		0
Installment [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans	[2]	560,184
Allowance for credit losses		4,061		$ 1,283
Accrued interest excluded from total	[2]	1,331
Installment [Member] | Boat Lending [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans	[2]	231,546
Accrued interest excluded from total	[2]	553
Installment [Member] | Boat Lending [Member] | Collateral Dependent Loans [Member]
Collateral-dependent Loans by Class [Abstract]
Allowance for credit losses		23
Installment [Member] | Boat Lending [Member] | Real Estate [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		0
Installment [Member] | Boat Lending [Member] | Other Loan [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		65
Installment [Member] | Recreational Vehicle Lending [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans	[2]	229,751
Accrued interest excluded from total	[2]	549
Installment [Member] | Recreational Vehicle Lending [Member] | Collateral Dependent Loans [Member]
Collateral-dependent Loans by Class [Abstract]
Allowance for credit losses		15
Installment [Member] | Recreational Vehicle Lending [Member] | Real Estate [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		0
Installment [Member] | Recreational Vehicle Lending [Member] | Other Loan [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		43
Installment [Member] | Other [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans	[2]	98,887
Accrued interest excluded from total	[2]	229
Installment [Member] | Other [Member] | Collateral Dependent Loans [Member]
Collateral-dependent Loans by Class [Abstract]
Allowance for credit losses		64
Installment [Member] | Other [Member] | Real Estate [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		0
Installment [Member] | Other [Member] | Other Loan [Member]
Collateral-dependent Loans by Class [Abstract]
Total loans		$ 180

[1] Beginning January 1, 2021, calculation is based on CECL methodology. Prior to January 1, 2021, calculation was based on the probable incurred loss methodology.

[2] Credit scores have been updated within the last twelve months.