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Short-term Investments and Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($)
Sep. 30, 2025
Dec. 31, 2024
Assets:    
Short-term investments $ 14,235,770 $ 28,300,232
Mutual funds    
Assets:    
Short-term investments 10,430,252 24,480,709
Certificates of deposit    
Assets:    
Short-term investments 2,989,307 2,989,742
U.S. agency mortgage-backed securities    
Assets:    
Short-term investments 816,211 829,781
Fair Value, Measurements, Recurring    
Assets:    
Short-term investments 14,235,770 28,300,232
Investment in affiliated entity 2,495,730 1,613,844
Total assets measured at fair value 16,731,500 29,914,076
Liabilities:    
Common stock warrant liabilities 50,384,043 13,255,188
Total liabilities 50,384,043 13,255,188
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets (Level 1)    
Assets:    
Short-term investments 10,430,252 24,480,709
Investment in affiliated entity 2,495,730 1,613,844
Total assets measured at fair value 12,925,982 26,094,553
Liabilities:    
Common stock warrant liabilities 0 0
Total liabilities 0 0
Fair Value, Measurements, Recurring | Significant Other Unobservable Inputs (Level 2)    
Assets:    
Short-term investments 3,805,518 3,819,523
Investment in affiliated entity 0 0
Total assets measured at fair value 3,805,518 3,819,523
Liabilities:    
Common stock warrant liabilities 0 0
Total liabilities 0 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)    
Assets:    
Short-term investments 0 0
Investment in affiliated entity 0 0
Total assets measured at fair value 0 0
Liabilities:    
Common stock warrant liabilities 50,384,043 13,255,188
Total liabilities 50,384,043 13,255,188
Fair Value, Measurements, Recurring | Mutual funds    
Assets:    
Short-term investments 10,430,252 24,480,709
Fair Value, Measurements, Recurring | Mutual funds | Quoted Prices in Active Markets (Level 1)    
Assets:    
Short-term investments 10,430,252 24,480,709
Fair Value, Measurements, Recurring | Mutual funds | Significant Other Unobservable Inputs (Level 2)    
Assets:    
Short-term investments 0 0
Fair Value, Measurements, Recurring | Mutual funds | Significant Unobservable Inputs (Level 3)    
Assets:    
Short-term investments 0 0
Fair Value, Measurements, Recurring | Certificates of deposit    
Assets:    
Short-term investments 2,989,307 2,989,742
Fair Value, Measurements, Recurring | Certificates of deposit | Quoted Prices in Active Markets (Level 1)    
Assets:    
Short-term investments 0 0
Fair Value, Measurements, Recurring | Certificates of deposit | Significant Other Unobservable Inputs (Level 2)    
Assets:    
Short-term investments 2,989,307 2,989,742
Fair Value, Measurements, Recurring | Certificates of deposit | Significant Unobservable Inputs (Level 3)    
Assets:    
Short-term investments 0 0
Fair Value, Measurements, Recurring | U.S. agency mortgage-backed securities    
Assets:    
Short-term investments 816,211 829,781
Fair Value, Measurements, Recurring | U.S. agency mortgage-backed securities | Quoted Prices in Active Markets (Level 1)    
Assets:    
Short-term investments 0 0
Fair Value, Measurements, Recurring | U.S. agency mortgage-backed securities | Significant Other Unobservable Inputs (Level 2)    
Assets:    
Short-term investments 816,211 829,781
Fair Value, Measurements, Recurring | U.S. agency mortgage-backed securities | Significant Unobservable Inputs (Level 3)    
Assets:    
Short-term investments $ 0 $ 0