STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Cash flows from operating activities
Net Loss	$ (51,321)	$ (64,732)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense	8,338	8,412
Non-cash operating lease expense		53
Net accretion of discount on investments	(3,279)	(2,855)
Changes in operating assets and liabilities:
Prepaid expenses and other assets	807	(1,026)
Accounts payable	641	553
Accrued compensation	(2,342)	1,850
Accrued liabilities	(2,227)	3,844
Operating lease liabilities		(53)
Other current liabilities	126	666
Net cash used in operating activities	(49,257)	(53,288)
Cash flows from investing activities
Purchases of investments	(46,751)	(132,178)
Maturities of investments	101,340	88,900
Net cash provided by (used in) investing activities	54,589	(43,278)
Cash flows from financing activities
Proceeds from issuance of common stock from the Underwritten Offering, net of commissions and offering expenses		65,479
Proceeds from issuance of common stock from the "at-the-market" offering, net of commissions and offering expenses		19,050
Proceeds from issuance of common stock under the ESPP	147	366
Proceeds from exercise of stock options	225	99
Net cash provided by financing activities	372	84,994
Net increase (decrease) in cash and cash equivalents	5,704	(11,572)
Cash and cash equivalents at the beginning of the period	15,647	27,219
Cash and cash equivalents at the end of the period	$ 21,351	$ 15,647