Leases (Supplemental Cash Flow Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating cash flows from operating leases	$ 2,223	$ 2,299
Operating cash flows from finance leases	19	18
Financing cash flows from finance leases	$ 623	$ 534