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BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Current assets:    
Cash and cash equivalents $ 38,052 $ 17,171
Short-term investments 62,571 157,338
Accounts receivable 3,103 3,432
Prepaid expenses and other current assets 3,579 4,995
Total current assets 107,305 182,936
Property and equipment, net 2,467 3,958
Intangible assets, net 583 729
Goodwill 949 949
Restricted cash 1,027 917
Operating lease right-of-use asset 8,136 12,220
Other assets 66 83
Total assets 120,533 201,792
Current liabilities:    
Accounts payable 1,088 1,458
Accrued liabilities 12,338 17,599
Operating lease liabilities - short term 5,145 4,589
Deferred revenues, current portion 67,201 132,267
Total current liabilities 85,772 155,913
Deferred revenue, net of current portion 26,862 80,048
Operating lease liabilities - long term 4,240 9,385
Other long-term liabilities 4,115 3,893
Total liabilities 120,989 249,239
Commitments and contingencies (Note 10)
Stockholders' deficit    
Common stock, $0.00001 par value; 300,000,000 and 150,000,000 shares authorized, and 80,099,889 and 67,310,838 shares issued and outstanding at December 31, 2024 and 2023, respectively 1 1
Additional paid-in capital 691,095 675,905
Accumulated other comprehensive income 27 95
Accumulated deficit (691,579) (723,448)
Total stockholders' deficit (456) (47,447)
Total liabilities and stockholders' deficit 120,533 201,792
Convertible Preferred Stock    
Stockholders' deficit    
Convertible preferred stock, $0.00001 par value; 10,000,000 shares authorized and no shares issued and outstanding $ 0 $ 0