Leases (Schedule of Lease Costs and Other Lease Information) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating lease
Operating lease cost	$ 378,000	$ 489,000
Short-term lease cost	25,000	21,000
Variable lease cost	70,000	60,000
Sublease income
Total Rent and occupancy	473,000	570,000
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	400,000	556,000
Lease right-of-use assets obtained in exchange for new lease liabilities
Operating leases		$ 1,388,000