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Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Current assets:    
Cash and cash equivalents $ 49,656 $ 66,656
Short-term investments 66,294 171,301
Accounts receivable, net 2,334 3,473
Inventory 158 231
Prepaid expenses and other current assets 4,085 4,532
Total current assets 122,527 246,193
Property and equipment, net 1,981 2,484
Goodwill 44,543 44,543
Operating lease right-of-use-assets 7,508 4,832
Restricted cash 29,000 0
Other assets 368 368
Total assets 205,927 298,420
Current liabilities:    
Accounts payable 3,797 14,801
Accrued liabilities 13,620 30,447
Deferred revenue 4,303 0
Total current liabilities 21,720 45,248
Long-term debt, net 56,508 100,298
Other long-term liabilities 7,540 6,924
Total liabilities 85,768 152,470
Commitments and contingencies (Note 7)
Stockholders’ Equity:    
Preferred stock, $0.01 par value; 5,000,000 shares authorized; 2,304,147 Series A Convertible Preferred shares issued and none outstanding 0 0
Common stock, $0.001 par value; 450,000,000 shares authorized; 365,780,799 and 363,020,303 shares issued, respectively 366 363
Additional paid-in capital 2,127,005 2,117,325
Accumulated deficit (2,002,054) (1,967,242)
Accumulated other comprehensive (loss) income 29 119
Treasury stock, at cost, 2,381,939 and 1,528,008 shares, respectively (5,187) (4,615)
Total stockholders’ equity 120,159 145,950
Total liabilities and stockholders’ equity $ 205,927 $ 298,420