Loans, Receivables Past Due (Details) - USD ($) $ in Thousands		Mar. 31, 2021	Dec. 31, 2020
Non performing loans [Abstract]
Non-Accrual with no Allowance for Credit Loss		$ 1,159
Non-Accrual with an Allowance for Credit Loss		5,930
Total Non-Accrual		7,089
90+ and Still Accruing		0
Total loans		2,784,224
Accrued interest excluded from total		8,496
Loans Past Due, 90+ days [Member]
Non performing loans [Abstract]
Accrued interest excluded from total		0
Commercial and Industrial [Member]
Non performing loans [Abstract]
Government guaranteed loans excluded from non-performing loans		53	$ 53
1-4 Family Owner Occupied - Non-jumbo [Member]
Non performing loans [Abstract]
Government guaranteed loans excluded from non-performing loans		406	386	[1]
Commercial [Member]
Non performing loans [Abstract]
Total loans		1,301,223
Accrued interest excluded from total		3,438
Commercial [Member] | Commercial and Industrial [Member]
Non performing loans [Abstract]
Non-Accrual with no Allowance for Credit Loss	[2]	74
Non-Accrual with an Allowance for Credit Loss	[2]	1,246
Total Non-Accrual	[2]	1,320
90+ and Still Accruing	[2]	0
Total loans		729,168
Accrued interest excluded from total		2,342
Commercial [Member] | Commercial Real Estate [Member]
Non performing loans [Abstract]
Non-Accrual with no Allowance for Credit Loss		0
Non-Accrual with an Allowance for Credit Loss		0
Total Non-Accrual		0
90+ and Still Accruing		0
Total loans		572,055
Accrued interest excluded from total		1,096
Mortgage [Member]
Non performing loans [Abstract]
Total loans	[3]	999,982
Accrued interest excluded from total	[3]	3,860
Mortgage [Member] | 1-4 Family Owner Occupied - Jumbo [Member]
Non performing loans [Abstract]
Non-Accrual with an Allowance for Credit Loss		0
Total Non-Accrual		619
90+ and Still Accruing		0
Total loans	[3]	447,865
Accrued interest excluded from total	[3]	1,125
Mortgage [Member] | 1-4 Family Owner Occupied - Non-jumbo [Member]
Non performing loans [Abstract]
Non-Accrual with no Allowance for Credit Loss	[4]	0
Non-Accrual with an Allowance for Credit Loss	[4]	1,982
Total Non-Accrual	[4]	1,982
90+ and Still Accruing	[4]	0
Total loans	[3]	251,498
Accrued interest excluded from total	[3]	1,686
Mortgage [Member] | 1-4 Family Non-owner Occupied [Member]
Non performing loans [Abstract]
Non-Accrual with no Allowance for Credit Loss		280
Non-Accrual with an Allowance for Credit Loss		693
Total Non-Accrual		973
90+ and Still Accruing		0
Total loans	[3]	157,993
Accrued interest excluded from total	[3]	512
Mortgage [Member] | 1-4 Family - 2nd Lien [Member]
Non performing loans [Abstract]
Non-Accrual with no Allowance for Credit Loss		186
Non-Accrual with an Allowance for Credit Loss		1,048
Total Non-Accrual		1,234
90+ and Still Accruing		0
Total loans	[3]	86,940
Accrued interest excluded from total	[3]	298
Mortgage [Member] | Resort Lending [Member]
Non performing loans [Abstract]
Non-Accrual with no Allowance for Credit Loss		0
Non-Accrual with an Allowance for Credit Loss		527
Total Non-Accrual		527
90+ and Still Accruing		0
Total loans	[3]	55,686
Accrued interest excluded from total	[3]	239
Installment [Member]
Non performing loans [Abstract]
Total loans	[3]	483,019
Accrued interest excluded from total	[3]	1,198
Installment [Member] | Boat Lending [Member]
Non performing loans [Abstract]
Non-Accrual with no Allowance for Credit Loss		0
Non-Accrual with an Allowance for Credit Loss		72
Total Non-Accrual		72
90+ and Still Accruing		0
Total loans	[3]	211,328
Accrued interest excluded from total	[3]	481
Installment [Member] | Recreational Vehicle Lending [Member]
Non performing loans [Abstract]
Non-Accrual with no Allowance for Credit Loss		0
Non-Accrual with an Allowance for Credit Loss		41
Total Non-Accrual		41
90+ and Still Accruing		0
Total loans	[3]	173,273
Accrued interest excluded from total	[3]	393
Installment [Member] | Other [Member]
Non performing loans [Abstract]
Non-Accrual with no Allowance for Credit Loss		0
Non-Accrual with an Allowance for Credit Loss		321
Total Non-Accrual		321
90+ and Still Accruing		0
Total loans	[3]	98,418
Accrued interest excluded from total	[3]	324
Non-Performing Loans [Member]
Non performing loans [Abstract]
Total loans		7,089	7,873	[1]
Accrued interest excluded from total		0	0	[1]
Non-Performing Loans [Member] | Commercial [Member] | Commercial and Industrial [Member]
Non performing loans [Abstract]
Total loans	[2]	1,320	1,387	[1]
Non-Performing Loans [Member] | Commercial [Member] | Commercial Real Estate [Member]
Non performing loans [Abstract]
Total loans		0	0	[1]
Non-Performing Loans [Member] | Mortgage [Member] | 1-4 Family Owner Occupied - Jumbo [Member]
Non performing loans [Abstract]
Total loans		619	623	[1]
Non-Performing Loans [Member] | Mortgage [Member] | 1-4 Family Owner Occupied - Non-jumbo [Member]
Non performing loans [Abstract]
Total loans	[4]	1,982	2,281	[1]
Non-Performing Loans [Member] | Mortgage [Member] | 1-4 Family Non-owner Occupied [Member]
Non performing loans [Abstract]
Total loans		973	1,112	[1]
Non-Performing Loans [Member] | Mortgage [Member] | 1-4 Family - 2nd Lien [Member]
Non performing loans [Abstract]
Total loans		1,234	1,344	[1]
Non-Performing Loans [Member] | Mortgage [Member] | Resort Lending [Member]
Non performing loans [Abstract]
Total loans		527	607	[1]
Non-Performing Loans [Member] | Installment [Member] | Boat Lending [Member]
Non performing loans [Abstract]
Total loans		72	52	[1]
Non-Performing Loans [Member] | Installment [Member] | Recreational Vehicle Lending [Member]
Non performing loans [Abstract]
Total loans		41	74	[1]
Non-Performing Loans [Member] | Installment [Member] | Other [Member]
Non performing loans [Abstract]
Total loans		$ 321	$ 393	[1]

[1] Non-performing loans at December 31, 2020 exclude PCI loans.

[2] Non-performing commercial and industrial loans exclude $0.053 million of government guaranteed loans at  both March 31, 2021 and December 31, 2020.

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

[4] Non-performing 1-4 family owner occupied – non jumbo loans exclude $0.406 million and $0.386 million of government guaranteed loans at March 31, 2021 and December 31, 2020, respectively.