Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 32,499	$ 53,208
Short-term investments	283,725	368,031
Other receivables	1,326	899
Inventory	4,491	4,627
Prepaid expenses and other current assets	3,082	2,098
Total current assets	330,513	434,982
Long-term investments	56,858	5,157
Operating lease right-of-use assets	25,177	27,003
Property and equipment, net	22,193	19,408
Restricted cash	524	524
Other assets	1,004	855
Total assets	436,269	487,929
Current liabilities:
Accounts payable	1,370	2,104
Accrued expenses	9,212	8,298
Deferred revenue	206	133
Operating lease liabilities, current	2,295	1,842
Other current liabilities	139	207
Total current liabilities	13,222	12,584
Operating lease liabilities, net of current portion	25,964	28,032
Other noncurrent liabilities	179	320
Total liabilities	39,365	40,936
Commitments and contingencies (Note 10)
Stockholders’ equity:
Preferred stock, $0.00001 par value; 5,000,000 shares authorized as of December 31, 2023 and 2022; zero shares issued and outstanding as of December 31, 2023 and 2022	0	0
Additional paid-in capital	702,868	667,739
Accumulated other comprehensive loss	(192)	(1,251)
Accumulated deficit	(305,773)	(219,496)
Total stockholders’ equity	396,904	446,993
Total liabilities and stockholders’ equity	436,269	487,929
Class A common stock
Stockholders’ equity:
Common stock	1	1
Class B common stock
Stockholders’ equity:
Common stock	0	0
Nonrelated Party
Current assets:
Accounts receivable, net	4,831	4,315
Related Party
Current assets:
Accounts receivable, net	$ 559	$ 1,804