Leases (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Leases (Textual)
Weighted average remaining life	6 years 8 months 19 days		6 years 8 months 19 days
Weighted average discount rate	2.70%		2.70%
Operating lease costs	$ 640	$ 603	$ 1,400	$ 1,200
Operating lease, right-of-use asset	17,700		17,700		$ 19,500
Lease liabilities	$ 18,669		$ 18,669		$ 20,100