Leases (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Leases (Textual)
Weighted average remaining life	7 years 5 months 16 days		7 years 5 months 16 days
Weighted average discount rate	2.72%		2.72%
Operating lease costs	$ 616	$ 533	$ 1,800	$ 1,600
Operating lease, right-of-use asset	20,200		20,200		$ 19,500
Lease liabilities	$ 20,984		$ 20,984		$ 20,100