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Subsequent events
9 Months Ended
Sep. 30, 2023
Subsequent Events [Abstract]  
Subsequent events
14. Subsequent events
On November 10, 2023, we delivered a drawdown notice (the “Notice”) to Rubric under the terms of the Subscription Agreement. Pursuant to the Notice, we agreed to sell 877,192 shares of Common Stock to Rubric at a price per share of $2.28, for total gross proceeds of approximately $2.0 million. The settlement of the transaction is expected to occur on the third trading day following the delivery of the Notice in accordance with the terms of the Subscription Agreement.