Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Accounts receivable (Details)

v3.23.3
Summary of Significant Accounting Policies - Accounts receivable (Details)
Sep. 30, 2023
USD ($)
customer
Dec. 31, 2022
USD ($)
Accounts receivable    
Allowance for doubtful accounts $ 0  
Accounts receivable 789,000 $ 7,435,000
Customer Concentration Risk    
Accounts receivable    
Accounts receivable $ 789,000 $ 7,435,000
Customer Concentration Risk | Astellas, Genentech and GSK Customers    
Accounts receivable    
Number of customers | customer 3  
Customer Concentration Risk | Genentech and GSK Customers    
Accounts receivable    
Number of customers | customer 2