CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands		Jun. 30, 2025	Dec. 31, 2024
Current assets
Cash and cash equivalents		$ 53,374	$ 91,415
Short-term investments		119,858	93,594
Accounts receivable, net	[1]	9,952	8,140
Inventory and other deferred costs		5,435	5,939
Prepaid expenses and other current assets		4,724	3,927
Total current assets		193,343	203,015
Property and equipment, net		45,812	48,274
Operating lease right-of-use assets		15,654	16,453
Other long-term assets		3,871	2,526
Total assets		258,680	270,268
Current liabilities
Accounts payable	[2]	9,926	6,397
Accrued and other current liabilities	[2]	20,172	21,629
Contract liabilities		1,625	3,100
Total current liabilities		31,723	31,126
Long-term operating lease liabilities		33,390	34,882
Other long-term liabilities	[3]	2,738	1,303
Total liabilities		67,851	67,311
Commitments and contingencies (Note 11)
Stockholders’ equity
Preferred stock, $0.0001 par value — 10,000,000 shares authorized; none issued
Common stock, $0.0001 par value - 200,000,000 shares authorized; 88,649,766 and 85,171,146 shares issued and outstanding, respectively		9	9
Additional paid-in capital		776,596	752,961
Accumulated other comprehensive income (loss)		20	(23)
Accumulated deficit		(585,796)	(549,990)
Total stockholders’ equity		190,829	202,957
Total liabilities and stockholders’ equity		$ 258,680	$ 270,268

[1] Includes related party accounts receivable of $1.9 million and $2.5 million as of June 30, 2025 and December 31, 2024, respectively.

[2] Includes related party liabilities of $3.7 million and $1.7 million as of June 30, 2025 and December 31, 2024, respectively.

[3] Includes related party liabilities of $1.1 million and $1.2 million as of June 30, 2025 and December 31, 2024, respectively.