CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Assets
Cash and cash equivalents	$ 30,462	$ 38,547
Marketable securities	104,355	182,481
Accounts receivable	575	628
Inventories	2,125	2,374
Other current assets	7,752	5,195
Total current assets	145,269	229,225
Operating lease right-of-use assets	4,713	7,289
Property, plant and equipment, net	11,389	12,114
Intangible assets, net	1,950	2,625
Other noncurrent assets	5,815	6,132
Total assets	169,136	257,385
Liabilities and stockholders' equity
Accounts payable	3,010	3,602
Accrued liabilities	4,632	2,648
Accrued employee costs	4,456	6,043
Lease liability, current portion	3,385	3,587
Other current liabilities	18,132	2,524
Total current liabilities	33,615	18,404
Lease liability, noncurrent portion	1,306	3,767
Warrant liability	4,955	6,772
Total liabilities	39,876	28,943
Commitments and contingencies (Note 15)
Convertible preferred stock $0.0001 par value; 10,000 shares authorized; no,shares issued and outstanding	0	0
Stockholders' Deficit
Common stock $0.0001 par value; 422,000 shares authorized; 53,832 and 52,389 shares issued and outstanding at September 30, 2024 and December 31, 2023, respectively	6	5
Additional paid-in capital	704,853	688,124
Accumulated other comprehensive income (loss)	116	(87)
Accumulated deficit	(575,715)	(459,600)
Total stockholders' equity	129,260	228,442
Total liabilities and stockholders' equity	$ 169,136	$ 257,385