Quarterly report pursuant to Section 13 or 15(d)

Balance Sheet Components - Narratives (Details)

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Balance Sheet Components - Narratives (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Jun. 13, 2024
Dec. 31, 2023
Balance Sheet Components            
Note receivable         $ 150,000  
Annual interest rate         5.12%  
Depreciation and amortization expense $ 28,000 $ 32,000 $ 48,000 $ 65,000    
Other noncurrent assets            
Balance Sheet Components            
Note receivable           $ 0