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Financial Statement Components - Future Amortization Expense (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]          
2022 (remaining six months) $ 1,381,000   $ 1,381,000    
2023 2,730,000   2,730,000    
2024 2,373,000   2,373,000    
2025 2,373,000   2,373,000    
2026 1,726,000   1,726,000    
Thereafter 5,375,000   5,375,000    
IPR&D 7,500,000   7,500,000    
Net Carrying Amount 23,458,000   23,458,000   $ 2,424,000
Amortization $ 800,000 $ 0 $ 856,000 $ 0 $ 226,000