Annual report [Section 13 and 15(d), not S-K Item 405]

Balance Sheet Components - Schedule of Prepaid and Other Current Assets (Details)

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Balance Sheet Components - Schedule of Prepaid and Other Current Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Prepaid Expense and Other Assets, Current [Abstract]    
At-the-market receivables settled on January 1, 2025 $ 1,404 $ 0
Prepaid fixed asset 750 0
License fees 78 158
Prepaid insurance 68 26
Prepaid rent 53 277
Hudson warrant 0 86
Other 56 181
Total $ 2,409 $ 728