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Commitment and Contingencies, including License Agreements - Operating Lease (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2025
USD ($)
Sep. 30, 2024
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Jul. 31, 2024
lease_renewal
Leases [Abstract]            
Number of renewal options available | lease_renewal           2
Additional renewal term           12 months
Operating lease right-of-use lease asset $ 138,622   $ 138,622   $ 218,816  
Operating lease liability $ 100,000   $ 100,000      
Operating lease discount rate (percent) 11.00%   11.00%      
Remaining lease term 1 year 2 months 1 day   1 year 2 months 1 day      
Future minimum payments due $ 100,000   $ 100,000      
Rent expense $ 32,000 $ 31,000 $ 95,000 $ 93,000