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Organization, Description of Business and Summary of Significant Accounting Policies - Narrative (Details)
 3 Months Ended
Mar. 31, 2025
USD ($)
segment
Mar. 31, 2024
USD ($)
Dec. 31, 2024
USD ($)
Class of Stock [Line Items]      
Number of operating segments | segment 1    
Intangible asset amortization - operating expenses $ 3,200,000 $ 3,700,000  
Short-term investments, allowance for expected credit losses 0   $ 0
Deposits 1,600,000   1,500,000
Total revenue 114,473,000 96,844,000  
Accounts receivable 53,781,000   46,525,000
Pension obligation 400,000   400,000
Other Testing Revenue      
Class of Stock [Line Items]      
Total revenue 400,000 3,000,000  
Biopharmaceutical and other revenue      
Class of Stock [Line Items]      
Total revenue 3,584,000 3,004,000  
Accounts receivable 5,100,000   3,800,000
Deferred revenue $ 1,700,000   $ 1,700,000
Amortization Of Intangible Assets      
Class of Stock [Line Items]      
Intangible asset amortization - operating expenses   $ 2,900,000