Income Taxes (Components of Deferred Tax Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Deferred tax assets:
Net operating loss carryforwards	$ 66,902	$ 53,618
Capitalized research and development	19,062	24,045
Stock-based compensation	1,931	1,804
Depreciation and amortization	666	762
Lease accounting	12,846	13,505
Interest expense carryforward	3,340	1,292
Other	2,336	2,086
Total deferred tax assets before valuation allowance	107,083	97,112
Less: valuation allowance	(97,776)	(84,217)
Total deferred tax assets after valuation allowance	9,307	12,895
Deferred tax liabilities:
Right-of-use asset	(8,755)	(10,763)
In-process research and development	(3,077)	(3,077)
Debt basis differences	(405)	(1,991)
Other	(147)	(141)
Total deferred tax liabilities	(12,384)	(15,972)
Net deferred tax liability	$ (3,077)	$ (3,077)