Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)	Dec. 31, 2025	Dec. 31, 2024
Components of Deferred Tax Assets [Abstract]
Net operating loss carryforwards	$ 84,257,000	$ 73,482,000
Sec. 163(j) carryforwards	14,330,000	11,603,000
Accruals and reserves	1,406,000	1,664,000
Deferred revenue	209,000	115,000
Capital loss carryforward	0	3,993,000
Section 174 research expenditures	8,382,000	11,869,000
Other deferred tax assets	7,403,000	7,223,000
Total deferred tax assets	115,987,000	109,949,000
Valuation allowance	(114,479,000)	(108,162,000)
Total net deferred tax assets	1,508,000	1,787,000
Deferred tax liabilities:
Basis difference in intangibles	(654,000)	(1,233,000)
Other deferred tax liabilities	(854,000)	(554,000)
Total deferred tax liabilities	(1,508,000)	(1,787,000)
Net deferred tax liabilities	$ 0	$ 0