Related Party Transactions - Additional Information (Details) - USD ($) |
1 Months Ended | 3 Months Ended | 6 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Feb. 12, 2024 |
Apr. 30, 2026 |
Jun. 30, 2025 |
Nov. 30, 2024 |
Jun. 30, 2024 |
Jan. 31, 2023 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
Mar. 31, 2024 |
|
| Related Party Transaction [Line Items] | ||||||||||||
| Due to related parties | $ 16,074,795 | $ 16,074,795 | $ 15,435,053 | |||||||||
| Number of shares options, granted | 64,288 | |||||||||||
| Related Party | ||||||||||||
| Related Party Transaction [Line Items] | ||||||||||||
| Due to related parties | 16,100,000 | $ 16,100,000 | ||||||||||
| Agenus Inc | ||||||||||||
| Related Party Transaction [Line Items] | ||||||||||||
| Period of license agreement | 3 years | |||||||||||
| Terminate license agreement period | 90 days | |||||||||||
| Period for breach of payment obligations | 45 days | |||||||||||
| Related party transaction, description | The Company may terminate the New Assignment and License Agreement without cause upon 90 days’ prior written notice to Agenus. Either party may terminate if there has been a material breach which has not been cured within 90 days (or 45 days for breach of payment obligations) of receiving such notice. | |||||||||||
| Intercompany allocation included in expense | 184,000 | $ 252,000 | $ 346,000 | $ 487,000 | ||||||||
| Percentage of per share price of equity securities sold in qualified financing | 80.00% | |||||||||||
| Qualified financing terms | In the event of a qualified financing event, as defined in the Note, the outstanding principal amount of the Note plus accrued and unpaid interest shall, at Agenus’ election, either be paid in full or converted into equity shares equal to the quotient obtained by dividing (i) the amount due on the date of conversion by (ii) 80% of the per share price of the equity securities sold in the qualified financing. Upon certain change in control events, the Company will pay Agenus an amount equal to (i) 1.5 times the principal then outstanding under the Note and (ii) the amount of accrued interest then outstanding immediately prior to the closing of such change of control. | |||||||||||
| Agenus Inc | Purchase Agreement | Convertible Promissory Note | ||||||||||||
| Related Party Transaction [Line Items] | ||||||||||||
| Convertible debt issued, principal amount | $ 5,000,000 | |||||||||||
| Convertible debt, annual interest rate | 2.00% | |||||||||||
| Convertible debt, interest rate terms | Interest shall accrue and not be payable until converted or paid in connection with the repayment in full of the principal amount of the Note. The Note provides that the Company will pay Agenus on request the principal amount outstanding, together with any unpaid interest, on or after January 1, 2026. | |||||||||||
| Convertible debt outstanding amount | $ 5,000,000 | |||||||||||
| Principal balance of note | 5,000,000 | |||||||||||
| Accrued and unpaid interest balance | $ 179,444 | |||||||||||
| Convertible debt, effective interest rate | 15.00% | |||||||||||
| Agenus Inc | New Intercompany Service Agreement | ||||||||||||
| Related Party Transaction [Line Items] | ||||||||||||
| Percentage of service cost | 10.00% | |||||||||||
| Service agreement notice period | 60 days | |||||||||||
| Agenus Inc | Individual Services | ||||||||||||
| Related Party Transaction [Line Items] | ||||||||||||
| Service agreement notice period | 30 days | |||||||||||
| Agenus Inc | Business Services and Occupancy Costs | ||||||||||||
| Related Party Transaction [Line Items] | ||||||||||||
| Percentage of service cost | 105.00% | |||||||||||
| Agenus Inc | Research Services | ||||||||||||
| Related Party Transaction [Line Items] | ||||||||||||
| Percentage of service cost | 110.00% | |||||||||||
| Wolf, Greenfield & Sachs, P.C. | ||||||||||||
| Related Party Transaction [Line Items] | ||||||||||||
| Legal services fee | $ 176,900 | $ 61,800 | $ 247,700 | $ 152,400 | ||||||||
| Dr. Buell | ||||||||||||
| Related Party Transaction [Line Items] | ||||||||||||
| Compensation paid | $ 150,000 | |||||||||||
| Additional compensation received | $ 0 | |||||||||||
| Dr. Buell | Stock Options | ||||||||||||
| Related Party Transaction [Line Items] | ||||||||||||
| Number of shares options, granted | 305,000 | 6,750 | 300,000 | 37,500 | ||||||||