Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows used in operating activities:
Net income (loss)	$ (31,827)	$ (30,199)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Stock-based compensation	3,221	4,640
Operating lease right-of-use asset	750	711
Depreciation	250	234
Amortization of premium (Accretion of discount) on marketable debt securities	(406)	(331)
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	(458)	(1,919)
Other assets	304	(2,297)
Accounts payable	(139)	918
Accrued expenses and other current liabilities	2,536	68
Operating lease liabilities	(731)	(682)
Net cash provided by (used in) operating activities	(26,500)	(28,857)
Cash flows from investing activities:
Purchase of marketable debt securities	(29,382)	(12,186)
Proceeds from maturity and redemption of marketable debt securities	26,100	50,820
Purchase of property and equipment	(63)	(45)
Net cash provided by (used in) investing activities	(3,345)	38,589
Cash flows from financing activities:
Proceeds from private placement, net of offering costs of $3,034	41,964
Proceeds from exercise of stock options	135
Taxes paid related to net share settlement of restricted stock units	(83)	(91)
Net cash provided by (used in) financing activities	42,016	(91)
Net increase (decrease) in cash and cash equivalents and restricted cash	12,171	9,641
Cash and cash equivalents and restricted cash - beginning of year	40,331	24,872
Cash and cash equivalents and restricted cash - end of period	52,502	34,513
Reconciliation of cash and cash equivalents and restricted cash to the condensed consolidated balance sheets:
Cash and cash equivalents	51,757	33,768
Restricted cash, non-current	745	745
Cash and cash equivalents and restricted cash	$ 52,502	$ 34,513