Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 52,473	$ 139,480
Marketable securities	309,440	294,606
Prepaid expenses and other current assets	5,812	4,387
Total current assets	367,725	438,473
Operating lease right-of-use assets	1,685	1,314
Other assets and long-term deposits	12,592	11,192
Total assets	382,002	450,979
Current liabilities:
Accounts payable	934	4,460
Operating lease liabilities, current	1,153	1,172
Other current liabilities (Note 6)	31,077	36,126
Total current liabilities	33,164	41,758
Operating lease liabilities, net of current portion	602	257
Long-term borrowing	3,000
Total liabilities	36,766	42,015
Commitments and contingencies (Note 10)
Stockholders' equity:
Preferred stock, $0.0001 par value; 10,000,000 shares authorized as of March 31, 2025 and December 31, 2024; no shares issued and outstanding as of March 31, 2025 and December 31, 2024.
Common stock, $0.0001 par value; 490,000,000 shares authorized as of March 31, 2025 and December 31, 2024; 68,333,065 and 74,312,608 shares issued as of March 31, 2025 and December 31, 2024, respectively; 68,333,065 and 74,312,608 shares outstanding as of March 31, 2025 and December 31, 2024, respectively.	7	7
Additional paid-in capital	854,194	843,920
Accumulated other comprehensive income	314	143
Accumulated deficit	(509,279)	(435,106)
Total stockholders' equity	345,236	408,964
Total liabilities and stockholders' equity	$ 382,002	$ 450,979