CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Current assets
Cash and cash equivalents	$ 20,262	$ 22,938
Accounts receivable, net	3,026	489
Inventory, Net	1,919	0
Prepaid expenses and other current assets	4,031	4,597
Short-term investments	52,208	69,427
Assets held for sale	0	1,181
Total current assets	81,446	98,632
Property and equipment, net	38,494	40,461
Operating lease right-of-use assets	2,963	3,468
Other assets	990	1,004
Long-term investments	66,858	59,994
Total assets	190,751	203,559
Current liabilities
Accounts payable	901	3,142
Current portion of operating lease liabilities	2,804	2,726
Accrued expenses and other current liabilities	4,369	3,995
Total current liabilities	8,074	9,863
Operating lease liabilities, net of current portion	912	1,646
Other liabilities	41	41
Total liabilities	9,027	11,550
Commitments and contingencies (Note 10)
Stockholders’ equity
Common stock, $0.0001 par value; 250,000,000 shares authorized; 188,927,224 and 187,878,790 shares issued at March 31, 2026 and December 31, 2025, respectively; $178,317,154 and $177,268,720 shares outstanding as of March 31, 2026 and December 31, 2025, respectively	19	19
Additional paid-in capital	414,574	413,122
Treasury stock, at cost	(14,132)	(14,132)
Accumulated deficit	(218,737)	(207,000)
Total stockholders’ equity	181,724	192,009
Total liabilities and stockholders’ equity	$ 190,751	$ 203,559