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Income Taxes (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Dec. 31, 2023
Income Taxes (Details) [Line Items]            
Income tax provision
Percentage of effective tax rate 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Unrecognized tax benefits        
Increase in valuation allowance         $ 300,000  
Unrecognized tax benefits         1,600,000 $ 1,600,000
Interest and penalties accrued for taxes $ 400,000   $ 400,000   500,000 0
Unrecognized tax benefits that would impact effective tax rate          
Domestic Tax Jurisdiction [Member]            
Income Taxes (Details) [Line Items]            
Operating loss carryforwards         359,500,000 341,000,000
Operating loss carryforwards, subject to expiration         73,300,000  
State and Local Jurisdiction [Member]            
Income Taxes (Details) [Line Items]            
Operating loss carryforwards         222,800,000 258,400,000
Research Tax Credit Carryforward [Member] | Domestic Tax Jurisdiction [Member]            
Income Taxes (Details) [Line Items]            
Credit carryforwards         3,500,000 3,500,000
Research Tax Credit Carryforward [Member] | State and Local Jurisdiction [Member]            
Income Taxes (Details) [Line Items]            
Credit carryforwards         3,500,000 $ 3,500,000
Previously Reported [Member]            
Income Taxes (Details) [Line Items]            
Interest and penalties accrued for taxes         $ 0