CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 85,158	$ 99,704
Marketable securities	233,036	271,209
Accounts and other receivables, net	442	607
Prepaid expenses and other current assets	6,218	9,481
Inventory	2,129	2,305
Total current assets	326,983	383,306
Property and equipment, net	8,044	8,177
Operating lease right-of-use assets	21,510	21,000
Restricted cash	150	150
Other assets	5,877	5,832
Total assets	362,564	418,465
Current liabilities:
Accounts payable	16,419	11,721
Accrued expenses	18,178	18,103
Deferred revenue	5,115	17,784
Other current liabilities	1,965	1,440
Total current liabilities	41,677	49,048
Deferred revenue - noncurrent	0	10,853
Operating lease liabilities - noncurrent	22,314	21,858
Other noncurrent liabilities	177	205
Total liabilities	64,168	81,964
Contingencies (Note 13)
Stockholders' equity:
Preferred stock, $.001 par value, 5,000,000 shares authorized, no shares issued and outstanding	0	0
Common stock, $.001 par value, 300,000,000 shares authorized at March 31,2025 and December 31,2024; 68,811,357 and 68,266,005 shares issued and outstanding at March 31,2025 and December 31, 2024,respectively	69	68
Additional paid-in capital	1,215,615	1,208,421
Accumulated deficit	(918,211)	(873,016)
Accumulated other comprehensive income (loss)	923	1,028
Total stockholders' equity	298,396	336,501
Total liabilities and stockholders' equity	$ 362,564	$ 418,465