Bank Premises and Equipment Lease (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Operating Leased Assets [Line Items]
Operating Lease, Right-of-Use Asset	$ 7,606
Operating Lease, Liability	$ 7,813
Operating Lease, Weighted Average Remaining Lease Term	12 years 4 months 24 days
Operating Lease, Weighted Average Discount Rate, Percent	3.16%
Lessee, Operating Lease, Liability, Payments, Due	$ 9,702
Lease, Cost	1,364
Imputed interest operating lease liability	1,889
Operating Lease, Payments	1,172
Lease right-of-use assets obtained in exchange for lessee operating lease liabilities	3,701
Lessee, Operating Lease, Liability, Payments, Due Next Rolling Twelve Months	1,237
Lessee, Operating Lease, Liability, Payments, Due in Rolling Year Four	882
Lessee, Operating Lease, Liability, Payments, Due in Rolling Year Five	629
Lessee, Operating Lease, Liability, Payments, Due after Rolling Year Five	4,750
Lessee, Operating Lease, Liability, Payments, Due in Rolling Year Two	1,137
Lessee, Operating Lease, Liability, Payments, Due in Rolling Year Three	$ 1,067
Minimum
Operating Leased Assets [Line Items]
Lessee, Operating Lease, Term of Contract	2 years
Maximum
Operating Leased Assets [Line Items]
Lessee, Operating Lease, Term of Contract	30 years