Leases (Other Information Related to Leases) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Lease information:
Operating lease cost	$ 841	$ 846	$ 2,533	$ 2,774
Operating cash flows from operating leases	865	860	2,551	2,787
Financing lease cost	393	393	1,179	1,179
Operating cash flows from financing leases	$ 303	$ 303	$ 909	$ 909