Leases and Contingencies (Schedule of Supplemental Cash Flow Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases and Contingencies [Abstract]
Cash paid for amounts included in the measurements of lease: Operating cash flow from operating leases liabilities	$ 3,775	$ 3,025
Right-of-use assets obtained in exchange for lease obligations - Operating leases	$ 887	$ 3,489
Weighted average remaining lease term	3 years 8 months 12 days
Weighted average discount rate	3.50%