Warrants	3 Months Ended
Mar. 31, 2026
Warrants and Rights Note Disclosure [Abstract]
Warrants	Warrants Warrants Issued to RTW Investments On March 3, 2026, in connection with the Amendment No.1 to the Purchase and Sale Agreement and the Equity Commitment Agreement with RTW, the Company also entered into the Warrant Issuance Agreement with the RTW investors. Pursuant to this agreement, the Company issued to the RTW Investors the RTW Warrant to purchase up to an aggregate of 375,000 shares of the Company's Common Stock. The RTW Warrant entitles the holders to purchase shares of Common Stock at an exercise price of $4.00 per share. The Warrant is exercisable at any time from the issuance date through March 3, 2029. Management estimated the fair value of the RTW Warrants to be $916, based on an assessment by an independent third-party appraiser. The fair value was estimated using the Black-Scholes pricing model, which utilized the Company's historical stock price to measure volatility and a holding period of three years based on the time period between the valuation date and the termination date as defined in the Warrant Issuance Agreement. The fair value of the RTW Warrants is presented within Additional Paid-in Capital on the Condensed Balance Sheets as of March 31, 2026 and within Interest income and other income, net on the Condensed Statements of Operations and Comprehensive Loss for the three months ended March 31, 2026. There were no warrants exercised as it relates to the RTW Warrants during the three months ended March 31, 2026. Warrants Issued to 12.5% Senior Secured Noteholders Warrants that were issued in conjunction with the Initial Notes (the “Initial Warrants”) and Additional Notes (the “Additional Warrants”) entitled the noteholders of the Company's 12.5% Notes to purchase up to 2,143,000 shares of Common Stock and included specified registration rights. Management estimated the fair value of the Initial Warrants to be $6,800 and the Additional Warrants to be $735, each based on an assessment by an independent third-party appraiser. The fair value of the respective warrants was treated as a debt discount, amortizable over the term of the respective warrants, with the unamortized 12.5% Notes portion applied to reduce the aggregate principal amount of the 12.5% Notes. The 12.5% Notes were refinanced with the 13.5% Notes on November 1, 2023. Additionally, since the Initial Warrants and Additional Warrants issued do not provide warrant redemption or put rights within the control of the noteholders that could require the Company to make a payment of cash or other assets to satisfy the obligations under the warrants, except in the case of a “cash change in control”, the fair value attributed to the warrants is presented in Additional Paid-in Capital in the Company’s Condensed Balance Sheets. The Initial Warrants and Additional Warrants expired on June 30, 2025. There were no warrants exercised as it relates to the Initial Warrants and the Additional Warrants during the three months ended March 31, 2025. Warrants Issued Under Securities Purchase Agreements In June 2022, the Company issued pre-funded warrants and Common Stock warrants to certain purchasers in connection with the Securities Purchase Agreements. The pre-funded warrants entitled purchasers to purchase up to 4,000,000 shares of Common Stock and were exercised in full during the year ended December 31, 2022. The Common Stock warrants expire on June 8, 2027 and entitled the purchasers to purchase up to 8,850,000 shares of Common Stock at an exercise price of $0.96 per share. Management estimated the fair value of the pre-funded warrants and Common Stock warrants to be $5,874 based on an assessment by an independent third-party appraiser. The fair value of the pre-funded and Common Stock warrants is treated as equity and presented in Additional Paid-in Capital in the Company’s Condensed Balance Sheets. On June 14, 2023, 3,689,452 Common Stock warrants issued pursuant to the Securities Purchase Agreements were exercised with proceeds of approximately $3,542. On August 1, 2023, the Company entered into the Letter Agreement with the Exercising Holder of 5,000,000 of the remaining Common Stock Warrants. Pursuant to the Letter Agreement, the Exercising Holder and the Company agreed that the Exercising Holder would exercise all of its Existing Warrants for shares of Common Stock underlying the Existing Warrants at $0.96 per share of Common Stock, the then current exercise price of the Existing Warrants. Under the Letter Agreement, in consideration of the Exercising Holder exercising the Existing Warrants, the Company issued to the Exercising Holder New Warrants to purchase up to an aggregate of 2,750,000 shares of Common Stock. The New Warrants became exercisable after February 2, 2024, expire on February 2, 2029 and are issuable only for cash, subject to exception if the shares of Common Stock underlying the New Warrants are not registered in accordance with the terms of the Letter Agreement, in which case, the New Warrants may also be exercised, in whole or in part, at such time by means of a "cashless exercise". The New Warrants have an exercise price of $2.60 per share. Management estimated the fair value of the warrants to be $4,671 based on an assessment by an independent third-party appraiser. The fair value of the New Warrants is treated as equity and is presented in Additional Paid-in Capital in the Company’s Condensed Balance Sheets. There were no warrants issued or exercised as it relates to the Warrants issued under Securities Purchase Agreements during the three months ended March 31, 2026 and 2025. As of March 31, 2026, in addition to the remaining New Warrants to purchase 2,200,000 shares of Common Stock with an exercise price of $2.60 per share and the RTW Warrants to purchase 375,000 shares with an exercise price of $4.00 per share described above, there remain outstanding warrants to purchase 160,548 shares of Common Stock at an exercise price of $0.96.

On March 3, 2026, in connection with the Amendment No.1 to the Purchase and Sale Agreement and the Equity Commitment Agreement with RTW, the Company also entered into the Warrant Issuance Agreement with the RTW investors. Pursuant to this agreement, the Company issued to the RTW Investors the RTW Warrant to purchase up to an aggregate of 375,000 shares of the Company's Common Stock. The RTW Warrant entitles the holders to purchase shares of Common Stock at an exercise price of $4.00 per share. The Warrant is exercisable at any time from the issuance date through March 3, 2029. Management estimated the fair value of the RTW Warrants to be $916, based on an assessment by an independent third-party appraiser. The fair value was estimated using the Black-Scholes pricing model, which utilized the Company's historical stock price to measure volatility and a holding period of three years based on the time period between the valuation date and the termination date as defined in the Warrant Issuance Agreement. The fair value of the RTW Warrants is presented within Additional Paid-in Capital on the Condensed Balance Sheets as of March 31, 2026 and within Interest income and other income, net on the Condensed Statements of Operations and Comprehensive Loss for the three months ended March 31, 2026.

Warrants that were issued in conjunction with the Initial Notes (the “Initial Warrants”) and Additional Notes (the “Additional Warrants”) entitled the noteholders of the Company's 12.5% Notes to purchase up to 2,143,000 shares of Common Stock and included specified registration rights. Management estimated the fair value of the Initial Warrants to be $6,800 and the Additional Warrants to be $735, each based on an assessment by an independent third-party appraiser. The fair value of the respective warrants was treated as a debt discount, amortizable over the term of the respective warrants, with the unamortized 12.5% Notes portion applied to reduce the aggregate principal amount of the 12.5% Notes. The 12.5% Notes were refinanced with the 13.5% Notes on November 1, 2023. Additionally, since the Initial Warrants and Additional Warrants issued do not provide warrant redemption or put rights within the control of the noteholders that could require the Company to make a payment of cash or other assets to satisfy the obligations under the warrants, except in the case of a “cash change in control”, the fair value attributed to the warrants is presented in Additional Paid-in Capital in the Company’s Condensed Balance Sheets. The Initial Warrants and Additional Warrants expired on June 30, 2025.

In June 2022, the Company issued pre-funded warrants and Common Stock warrants to certain purchasers in connection with the Securities Purchase Agreements. The pre-funded warrants entitled purchasers to purchase up to 4,000,000 shares of Common Stock and were exercised in full during the year ended December 31, 2022. The Common Stock warrants expire on June 8, 2027 and entitled the purchasers to purchase up to 8,850,000 shares of Common Stock at an exercise price of $0.96 per share. Management estimated the fair value of the pre-funded warrants and Common Stock warrants to be $5,874 based on an assessment by an independent third-party appraiser. The fair value of the pre-funded and Common Stock warrants is treated as equity and presented in Additional Paid-in Capital in the Company’s Condensed Balance Sheets. On June 14, 2023, 3,689,452 Common Stock warrants issued pursuant to the Securities Purchase Agreements were exercised with proceeds of approximately $3,542.

On August 1, 2023, the Company entered into the Letter Agreement with the Exercising Holder of 5,000,000 of the remaining Common Stock Warrants. Pursuant to the Letter Agreement, the Exercising Holder and the Company agreed that the Exercising Holder would exercise all of its Existing Warrants for shares of Common Stock underlying the Existing Warrants at $0.96 per share of Common Stock, the then current exercise price of the Existing Warrants. Under the Letter Agreement, in consideration of the Exercising Holder exercising the Existing Warrants, the Company issued to the Exercising Holder New Warrants to purchase up to an aggregate of 2,750,000 shares of Common Stock. The New Warrants became exercisable after February 2, 2024, expire on February 2, 2029 and are issuable only for cash, subject to exception if the shares of Common

Stock underlying the New Warrants are not registered in accordance with the terms of the Letter Agreement, in which case, the New Warrants may also be exercised, in whole or in part, at such time by means of a "cashless exercise". The New Warrants have an exercise price of $2.60 per share. Management estimated the fair value of the warrants to be $4,671 based on an assessment by an independent third-party appraiser. The fair value of the New Warrants is treated as equity and is presented in Additional Paid-in Capital in the Company’s Condensed Balance Sheets.

As of March 31, 2026, in addition to the remaining New Warrants to purchase 2,200,000 shares of Common Stock with an exercise price of $2.60 per share and the RTW Warrants to purchase 375,000 shares with an exercise price of $4.00 per share described above, there remain outstanding warrants to purchase 160,548 shares of Common Stock at an exercise price of $0.96.