Contractual Obligations, Commitments and Contingent Liabilities (Schedule of Commitments) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Other Commitments [Line Items]
Other Commitment	$ 156,926	$ 126,990
Residential mortgage- home equity [Member]
Other Commitments [Line Items]
Other Commitment	53,827	49,294
Residential Mortgage - Construction [Member]
Other Commitments [Line Items]
Other Commitment	4,995	6,790
Commercial Loan [Member]
Other Commitments [Line Items]
Other Commitment	85,089	63,668
Consumer Loan - Personal Credit Lines [Member]
Other Commitments [Line Items]
Other Commitment	3,903	3,847
Standby Letters of Credit [Member]
Other Commitments [Line Items]
Other Commitment	$ 9,112	$ 3,391