Commitments and Contingencies (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	$ 5,081,000	$ 5,219,000
Operating Lease, Liability	7,842,000	7,041,000
Operating lease costs	1,559,000	1,234,000	$ 870,000
Operating Lease Payments, Net Of Tenant Improvements	$ 102,000	$ (34,000)	$ 769,000
Weighted average discount rate	6.57%	6.50%
Weighted average remaining lease term	5 years 8 months 4 days
Purchase obligation	$ 13,572,000
Contingent liabilities requiring accrual	$ 0	$ 0
Headquarters [Member]
Lessee, Lease, Description [Line Items]
Renewal term	5 years
Additional Office, Laboratory And Manufacturing Space [Member]
Lessee, Lease, Description [Line Items]
Renewal term	5 years
Operating Lease, Right-of-Use Asset	$ 3,307,000
Operating Lease, Liability	$ 3,307,000