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Related Party Transactions (Details)
1 Months Ended 12 Months Ended
Feb. 25, 2020
USD ($)
Aug. 31, 2020
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Jun. 30, 2021
USD ($)
Aug. 01, 2019
USD ($)
ft²
Nov. 30, 2015
USD ($)
Related Party Transaction [Line Items]                
Credit line capacity     $ 105,348,000          
Amounts outstanding under line of credit     31,820,000 $ 13,672,000        
Reverse stock split ratio         0.01      
Revolving Credit Facility | Line of Credit | New Credit Agreement                
Related Party Transaction [Line Items]                
Credit line capacity               $ 75,000,000
Commitment fee (as a percent) 0.25%              
Line of Credit | Unsecured Debt                
Related Party Transaction [Line Items]                
Credit line capacity $ 100,000,000              
Amounts outstanding under line of credit       0   $ 0    
Detect Genomix                
Related Party Transaction [Line Items]                
Related party expenses     1,300,000          
Due from affiliate     317,700          
Real Estate Holdings LLC                
Related Party Transaction [Line Items]                
Area of real estate property (in square feet) | ft²             29,500  
Lease payments per month in first year             $ 89,000  
Lease payments per month in fifth year             $ 101,000  
Beckman Coulter                
Related Party Transaction [Line Items]                
Related party expenses     3,200,000          
Integrated DNA Technologies Inc.                
Related Party Transaction [Line Items]                
Related party expenses     200,000          
Leica Microsystems Inc.                
Related Party Transaction [Line Items]                
Related party expenses     400,000          
Dr Frost | Reimbursement Of Travel Expense                
Related Party Transaction [Line Items]                
Related party expenses     $ 152,000 $ 105,000 $ 156,000      
Chief Technical Officer | Federal Trade Commission Filing Fees                
Related Party Transaction [Line Items]                
Related party transaction amount   $ 125,000            
Chief Executive Officer | Federal Trade Commission Filing Fees                
Related Party Transaction [Line Items]                
Related party transaction amount   280,000            
Zebra                
Related Party Transaction [Line Items]                
Stock ownership (as a percent)     29.00%          
Neovasc                
Related Party Transaction [Line Items]                
Equity method investments (as a percent)     0.00%          
ChromaDex Corporation                
Related Party Transaction [Line Items]                
Equity security investments (as a percent)     0.10%          
Cocrystal Pharma                
Related Party Transaction [Line Items]                
Equity method investments (as a percent)     3.00%          
NIMS                
Related Party Transaction [Line Items]                
Equity security investments (as a percent)     1.00%          
Eloxx Pharmaceuticals                
Related Party Transaction [Line Items]                
Equity security investments (as a percent)     1.00%          
BioCardia, Inc.                
Related Party Transaction [Line Items]                
Equity method investments (as a percent)     1.00%          
LeaderMed                
Related Party Transaction [Line Items]                
Stock ownership (as a percent)     47.00%          
GeneDx Holdings                
Related Party Transaction [Line Items]                
Stock ownership (as a percent)     21.00%          
InCellDx, Inc                
Related Party Transaction [Line Items]                
Equity method investments (as a percent)     29.00%          
Variable Interest Entity, Not Primary Beneficiary | Detect Genomix                
Related Party Transaction [Line Items]                
Additional investment in equity method investment   $ 245,000            
Equity method investments (as a percent)   49.00%            
Variable Interest Entity, Not Primary Beneficiary | Detect Genomix | Mednax Services, Inc.                
Related Party Transaction [Line Items]                
Additional investment in equity method investment   $ 255,000            
Equity method investments (as a percent)   51.00%            
Variable Interest Entity, Not Primary Beneficiary | Zebra                
Related Party Transaction [Line Items]                
Equity method investments (as a percent)     29.00% 29.00%