Redeemable Convertible Preferred Stock	12 Months Ended
Dec. 31, 2023
Disclosure Convertible Preferred Stock [Abstract]
Redeemable Convertible Preferred Stock	Note 12. Redeemable Convertible Preferred Stock Series A Redeemable Convertible Preferred Stock In May 2023, the Company entered into the SPA with NR-GRI, whereby it sold to NR-GRI, for an aggregate purchase price of $20,000, 20 shares of Series A Redeemable Convertible Preferred Stock and the Warrants (the “Private Placement”). Refer to Note 10, Warrant Liabilities, for more details related to the Warrants. The Series A Redeemable Convertible Preferred Stock is convertible into 7,940 shares of common stock at the election of NR-GRI. On August 1, 2023, the Company’s stockholders voted to approve the issuance of shares of the Company’s common stock issuable upon conversion of the shares of Series A Redeemable Convertible Preferred Stock and exercise of the Warrants. As a result of the stockholders’ approval of the Private Placement, applicable ownership limitations under Nasdaq rules were lifted, and NR-GRI became entitled to convert shares of Series A Redeemable Convertible Preferred Stock or exercise Warrants up to the full amount purchased in the Private Placement. Holders of Series A Redeemable Convertible Preferred Stock are entitled to vote on an as-converted basis with holders of common stock. The Series A Redeemable Convertible Preferred Stock ranks senior to the common stock as to distributions and payments upon the liquidation, dissolution and winding up of the Company, and holders of Series A Redeemable Convertible Preferred Stock participate with the holders of the common stock on an as-converted basis to the extent any dividends are declared on common stock. The shares of Series A Redeemable Convertible Preferred Stock will automatically be redeemed in connection with certain transactions (“Fundamental Transactions”), including a merger, sale of all or substantially all the assets of the Company, recapitalization, or the sale by the Company of shares resulting in more than 50% ownership by a person or group. In such event, the redemption price would be equal to the greater of the stated value of the shares of Series A Redeemable Convertible Preferred Stock or the consideration per share of common stock in the Fundamental Transaction (or in the absence of such consideration, the volume-weighted average price of the Company’s common stock immediately preceding the closing of the Fundamental Transaction). The Series A Redeemable Convertible Preferred Stock is classified as temporary equity in the balance sheet because redemption automatically occurs upon a Fundamental Transaction. However, redemption is not considered probable; therefore, the Series A Redeemable Convertible Preferred Stock is not accreted to face value. The proceeds of the transaction were allocated first to the fair value of warrants due to the classification of the warrants as a liability on the balance sheet and the remainder of the proceeds were allocated to the Series A Redeemable Convertible Preferred Stock. Offering costs of $901 were allocated ratably based on the allocation of proceeds; $253 was allocated to the general and administrative expenses and $648 was allocated to Series A Redeemable Convertible Preferred Stock. Series A Redeemable Convertible Preferred Stock is presented net of offering costs on the balance sheet. In connection with the parties’ entry into the SPA, the Company and NR-GRI entered into a Registration Rights Agreement, pursuant to which the Company filed a resale registration statement on Form S-3 (No. 333-272930) with respect to the resale of the shares of the Company’s common stock issuable upon conversion of the shares of Series A Redeemable Convertible Preferred Stock and exercise of the Warrants.

Redeemable Convertible Preferred Stock

12 Months Ended

Dec. 31, 2023

Disclosure Convertible Preferred Stock [Abstract]

Note 12. Redeemable Convertible Preferred Stock

Series A Redeemable Convertible Preferred Stock

In May 2023, the Company entered into the SPA with NR-GRI, whereby it sold to NR-GRI, for an aggregate purchase price of $20,000, 20 shares of Series A Redeemable Convertible Preferred Stock and the Warrants (the “Private Placement”). Refer to Note 10, Warrant Liabilities, for more details related to the Warrants. The Series A Redeemable Convertible Preferred Stock is convertible into 7,940 shares of common stock at the election of NR-GRI.

On August 1, 2023, the Company’s stockholders voted to approve the issuance of shares of the Company’s common stock issuable upon conversion of the shares of Series A Redeemable Convertible Preferred Stock and exercise of the Warrants. As a result of the stockholders’ approval of the Private Placement, applicable ownership limitations under Nasdaq rules were lifted, and NR-GRI became entitled to convert shares of Series A Redeemable Convertible Preferred Stock or exercise Warrants up to the full amount purchased in the Private Placement.

Holders of Series A Redeemable Convertible Preferred Stock are entitled to vote on an as-converted basis with holders of common stock. The Series A Redeemable Convertible Preferred Stock ranks senior to the common stock as to distributions and payments upon the liquidation, dissolution and winding up of the Company, and holders of Series A Redeemable Convertible Preferred Stock participate with the holders of the common stock on an as-converted basis to the extent any dividends are declared on common stock. The shares of Series A Redeemable Convertible Preferred Stock will automatically be redeemed in connection with certain transactions (“Fundamental Transactions”), including a merger, sale of all or substantially all the assets of the Company, recapitalization, or the sale by the Company of shares resulting in more than 50% ownership by a person or group. In such event, the redemption price would be equal to the greater of the stated value of the shares of Series A Redeemable Convertible Preferred Stock or the consideration per share of common stock in the Fundamental Transaction (or in the absence of such consideration, the

volume-weighted average price of the Company’s common stock immediately preceding the closing of the Fundamental Transaction).

The Series A Redeemable Convertible Preferred Stock is classified as temporary equity in the balance sheet because redemption automatically occurs upon a Fundamental Transaction. However, redemption is not considered probable; therefore, the Series A Redeemable Convertible Preferred Stock is not accreted to face value. The proceeds of the transaction were allocated first to the fair value of warrants due to the classification of the warrants as a liability on the balance sheet and the remainder of the proceeds were allocated to the Series A Redeemable Convertible Preferred Stock. Offering costs of $901 were allocated ratably based on the allocation of proceeds; $253 was allocated to the general and administrative expenses and $648 was allocated to Series A Redeemable Convertible Preferred Stock. Series A Redeemable Convertible Preferred Stock is presented net of offering costs on the balance sheet.

In connection with the parties’ entry into the SPA, the Company and NR-GRI entered into a Registration Rights Agreement, pursuant to which the Company filed a resale registration statement on Form S-3 (No. 333-272930) with respect to the resale of the shares of the Company’s common stock issuable upon conversion of the shares of Series A Redeemable Convertible Preferred Stock and exercise of the Warrants.