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Short-term Investments and Fair Value Measurements (Tables) | 9 Months Ended
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Sep. 30, 2025
Investments, Debt and Equity Securities [Abstract] |
Schedule of Summary of Investments | The following is a summary of available-for-sale securities as of September 30, 2025 and December 31, 2024:
|  |  | As of September 30, 2025
| Contractual Maturity (in years) | Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Market Value
Mutual funds | --- |  | $ | 10,771,176 |  |  | $ | — |  |  | $ | (340,924) |  |  | $ | 10,430,252 |
U.S. treasury securities | Less than 1 |  | — |  |  | — |  |  | — |  |  | — |
Certificates of deposit | Less than 1 |  | 2,981,285 |  |  | 8,288 |  |  | (266) |  |  | 2,989,307 |
U.S. agency mortgage-backed securities | * |  | 1,209,229 |  |  | — |  |  | (393,018) |  |  | 816,211 |
|  |  | $ | 14,961,690 |  |  | $ | 8,288 |  |  | $ | (734,208) |  |  | $ | 14,235,770 |
|  |  | As of December 31, 2024
| Contractual Maturity (in years) | Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Market Value
Mutual funds | --- |  | $ | 25,926,415 |  |  | $ | — |  |  | $ | (1,445,706) |  |  | $ | 24,480,709 |
Certificates of deposit | Less than 1 |  | 2,980,273 |  |  | 9,750 |  |  | (281) |  |  | 2,989,742 |
U.S. agency mortgage-backed securities | * |  | 1,260,745 |  |  | — |  |  | (430,964) |  |  | 829,781 |
|  |  | $ | 30,167,433 |  |  | $ | 9,750 |  |  | $ | (1,876,951) |  |  | $ | 28,300,232 |
*No single maturity date.
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis | The following table presents the Company’s assets and liabilities that were measured at fair value on a recurring basis, determined using the following inputs as of September 30, 2025:
| Fair Value Measurements at
| September 30, 2025
| Total |  | Quoted Prices in Active Markets (Level 1) |  | Significant Other Unobservable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Assets: |  |  |  |  |  |  |
Short-term investments |  |  |  |  |  |  |
Mutual funds | $ | 10,430,252 |  |  | $ | 10,430,252 |  |  | $ | — |  |  | $ | — |
Certificates of deposit | 2,989,307 |  |  | — |  |  | 2,989,307 |  |  | — |
U.S. agency mortgage-backed securities | 816,211 |  |  | — |  |  | 816,211 |  |  | — |
Total short-term investments | 14,235,770 |  |  | 10,430,252 |  |  | 3,805,518 |  |  | — |
Investment in affiliated entity | 2,495,730 |  |  | 2,495,730 |  |  | — |  |  | — |
Total assets measured at fair value | $ | 16,731,500 |  |  | $ | 12,925,982 |  |  | $ | 3,805,518 |  |  | $ | — |
Liabilities: |  |  |  |  |  |  |
Common stock warrant liabilities | 50,384,043 |  |  | $ | — |  |  | $ | — |  |  | 50,384,043 |
Total liabilities | $ | 50,384,043 |  |  | $ | — |  |  | $ | — |  |  | $ | 50,384,043 |
The following table presents the Company’s assets and liabilities that were measured at fair value on a recurring basis, determined using the following inputs as of December 31, 2024:
| Fair Value Measurements at
| December 31, 2024
| Total |  | Quoted Prices in Active Markets (Level 1) |  | Significant Other Unobservable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Assets: |  |  |  |  |  |  |
Short-term investments |  |  |  |  |  |  |
Mutual funds | $ | 24,480,709 |  |  | $ | 24,480,709 |  |  | $ | — |  |  | $ | — |
Certificates of deposit | 2,989,742 |  |  | — |  |  | 2,989,742 |  |  | — |
U.S. agency mortgage-backed securities | 829,781 |  |  | — |  |  | 829,781 |  |  | — |
Total short-term investments | 28,300,232 |  |  | 24,480,709 |  |  | 3,819,523 |  |  | — |
Investment in affiliated entity | 1,613,844 |  |  | 1,613,844 |  |  | — |  |  | — |
Total assets measured at fair value | $ | 29,914,076 |  |  | $ | 26,094,553 |  |  | $ | 3,819,523 |  |  | $ | — |
Liabilities: |  |  |  |  |  |  |
Common stock warrant liability | 13,255,188 |  |  | — |  |  | — |  |  | 13,255,188 |
Total liabilities | $ | 13,255,188 |  |  | $ | — |  |  | $ | — |  |  | $ | 13,255,188 |
Fair Value Measurement Inputs and Valuation Techniques | The following assumptions were used to estimate the fair value of the warrant liability of the July 2025 Series A warrants:
| On Issuance Date |  | September 30, 2025
Risk-free interest rate | 4.3% |  | 4.0%
Expected volatility | 96% |  | 112%
Expected life in years | 0.6 |  | 0.3
Dividend yield | — |  | —
The following assumptions were used to estimate the fair value of the warrant liability of the July 2025 Series B warrants:
| On Issuance Date |  | September 30, 2025
Risk-free interest rate | 3.9% |  | 3.7%
Expected volatility | 94% |  | 89%
Expected life in years | 5 |  | 4.8
Dividend yield | — |  | —
The following assumptions were used to estimate the fair value of the warrant liability of the December 2024 warrants:
| September 30, 2025 |  | December 31, 2024
Risk-free interest rate | 3.7% |  | 4.4%
Expected volatility | 88% |  | 111%
Expected life in years | 4.2 |  | 5
Dividend yield | — |  | —
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation | The following table presents the change in fair value of the Company’s total Level 3 financial liabilities for the nine months ended September 30, 2025:
| Common Stock Warrant Liabilities
Balance at December 31, 2024 | $ | 13,255,188 |
Issuance of Series A common stock warrants in July 2025 | 3,779,879 |
Issuance of Series B common stock warrants in July 2025 | 13,206,951 |
Increase in fair value of Series A common stock warrants issued in July 2025 | 8,910,710 |
Increase in fair value of Series B common stock warrants issued in July 2025 | 11,610,105 |
Increase in fair value of common stock warrants issued in December 2024 | 160,053 |
Change in classification from liability to stockholders equity due to warrant exercise | (538,843) |
Balance at September 30, 2025 | $ | 50,384,043 |

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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 103 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-103 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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- Definition Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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