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Significant Accounting Policies and Concentrations of Risk (Details) - USD ($)
shares in Thousands
 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Significant Accounting Policies and Concentration of Risk [Line Items]      
Restricted cash $ 2,223,000   $ 1,804,000
Birmingham lease restricted cash 1,410,000    
Restricted cash $ 813,000   1,804,000
Long-term investment maturity, minimum (in years) 12 months    
Antidilutive securities excluded from computation of earnings per share, amount (in shares) 44,441 54,772  
Reclassification from accumulated other comprehensive income, current period, before tax $ 0 $ 0  
Computer Equipment      
Significant Accounting Policies and Concentration of Risk [Line Items]      
Property, plant and equipment, useful life (in years) 3 years    
Laboratory Equipment, Office Equipment and Software      
Significant Accounting Policies and Concentration of Risk [Line Items]      
Property, plant and equipment, useful life (in years) 5 years    
Furniture and Fixtures      
Significant Accounting Policies and Concentration of Risk [Line Items]      
Property, plant and equipment, useful life (in years) 5 years    
Maximum      
Significant Accounting Policies and Concentration of Risk [Line Items]      
Maturity period of high quality marketable securities (in years) 3 years    
Average maturity period of high quality marketable securities (in months) 12 months    
Maturity period of short term investment (in months) 12 months    
Collateral for Credit      
Significant Accounting Policies and Concentration of Risk [Line Items]      
Birmingham lease restricted cash $ 1,410,000    
Restricted cash     $ 1,493,000