CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities:
Net loss	$ (65,433)	$ (63,934)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation of property and equipment	67	68
Amortization of debt issuance costs	220	201
Amortization of discount/premium on investments	(3,172)	(5,655)
Share-based compensation	7,331	15,204
Gain on redemption of investments	(5)	0
Gain on sale of property and equipment	0	(5)
Lease-related amortization	(83)	(66)
Changes in operating assets and liabilities:
Accounts receivable	(151)	1,029
Prepaid expenses and other assets	1,773	3,616
Accounts payable and accrued liabilities	3,744	(4,958)
Net cash used in operating activities	(55,709)	(54,500)
Cash flows from investing activities:
Purchases of property and equipment	(124)	(89)
Proceeds from sale of property and equipment	0	5
Purchases of short-term investments	(45,569)	(72,224)
Purchases of long-term investments	(49,580)	(24,592)
Proceeds from redemptions/maturities of short-term investments	143,597	139,430
Proceeds from redemptions of long-term investments	3,025	0
Net cash provided by investing activities	51,349	42,530
Cash flows from financing activities:
Proceeds from exercise of stock options	2	0
Proceeds from employee stock purchase plan	600	465
Payments of debt issuance costs	(258)	(219)
Net cash provided by financing activities	344	246
Net decrease in cash and cash equivalents	(4,016)	(11,724)
Cash and cash equivalents:
Beginning of period	27,661	25,842
End of period	$ 23,645	$ 14,118