Leases (Components of Lease Expense and Other Lease Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease cost	$ 3,010	$ 2,936
Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases	2,473	1,889
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 0	$ 0