Borrowed Funds (Short-term borrowings) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Securities Sold under Agreements to Repurchase [Member]
Short-term Debt [Line Items]
Maximum Month End Balance	$ 37,441	$ 63,133
Quarter to Date Average Balance	$ 31,406	$ 38,036
Weighted Average Interest Rate During the Period	0.10%	0.10%
Federal Funds Purchased [Member]
Short-term Debt [Line Items]
Maximum Month End Balance	$ 7,070	$ 16,200
Quarter to Date Average Balance	$ 687	$ 3,741
Weighted Average Interest Rate During the Period	2.60%	1.90%