Leases (Schedule of Lease Costs and Other Lease Information) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating lease
Operating lease cost	$ 347,000	$ 410,000	$ 726,000	$ 898,000
Short-term lease cost	52,000	23,000	77,000	44,000
Variable lease cost	57,000	37,000	126,000	98,000
Total Rent and occupancy	456,000	470,000	929,000	1,040,000
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	375,000	338,000	775,000	894,000
Lease right-of-use assets obtained in exchange for new lease liabilities
Operating leases	$ 602,000	$ 487,000	$ 602,000	$ 1,875,000