Leases (Components of Lease Expense and Other Lease Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease cost	$ 2,147	$ 3,010
Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases	2,171	2,473
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 436	$ 0