CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows from operating activities:
Net loss	$ (12,414)	$ (17,036)
Adjustment to reconcile net loss to net cash used in operating activities:
Non-cash stock-based compensation	1,006	810
Non-cash lease expense	296	276
Changes in operating assets and liabilities:
Prepaid expenses and other assets	(1,423)	(2,508)
Accounts payable	(164)	747
Accrued expenses and other current liabilities	(3,383)	(2,467)
Operating lease liabilities	(318)	(265)
Net cash used in operating activities	(16,400)	(20,443)
Cash flows from financing activities:
Proceeds from issuance of common stock, common stock warrants, and pre-funded warrants, net of issuance costs	23,051	26,605
Proceeds from the exercise of common stock warrants	4,712	404
Proceeds from employee stock purchases	48	51
Net cash provided by financing activities	27,811	27,060
Net increase in cash, cash equivalents, restricted cash, and restricted cash equivalents	11,411	6,617
Cash, cash equivalents, restricted cash, and restricted cash equivalents at the beginning of period	13,986	2,630
Cash, cash equivalents, restricted cash, and restricted cash equivalents at the end of period	25,397	9,247
Supplemental disclosure of cash flow information:
Cash received during the period for interest	522	230
Supplemental disclosure of non-cash investing and financing activities:
Proceeds from the exercise of common stock warrants in prepaid expenses and other assets	281	0
Offering expenses included in accounts payable and accrued expenses and other current liabilities	0	55
Warrant modifications recorded in stockholders' equity	$ 0	$ 725