Annual report [Section 13 and 15(d), not S-K Item 405]

Summary of Significant Accounting Policies - Narrative (Details)

v3.26.1
Summary of Significant Accounting Policies - Narrative (Details)
 12 Months Ended
Dec. 02, 2025
$ / shares
Dec. 31, 2025
USD ($)
segment
$ / shares
Dec. 31, 2024
USD ($)
$ / shares
Dec. 31, 2023
USD ($)
Jan. 03, 2023
$ / shares
Property, Plant and Equipment [Line Items]          
Reverse stock split ratio 0.1        
Common stock, par or stated value (in dollars per share) | $ / shares $ 0.0005 $ 0.0005 $ 0.0005   $ 0.0005
Number of operating segments | segment   2      
Cash used by operating activities   $ 8,941,000 $ 11,803,000    
Cash and cash equivalents   90,000 678,000    
Bad debt expense     39,000    
Accounts receivable, allowance for credit loss   $ 1,022,000 14,843,000 $ 3,864,000  
Goodwill impairment loss statement of income or comprehensive income extensible enumeration not disclosed flag   goodwill impairment loss      
Goodwill, impairment loss   $ 1,300,000      
Impairment of long-lived assets   0 0    
Contract with customer, liability   2,100,000 2,500,000    
Contract with customer, liability, revenue recognized   1,800,000 700,000    
Research and development   $ 107,000 $ 594,000    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01          
Property, Plant and Equipment [Line Items]          
Expected timing of satisfaction, period (in years)     1 year    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01          
Property, Plant and Equipment [Line Items]          
Expected timing of satisfaction, period (in years)   1 year 1 year    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01          
Property, Plant and Equipment [Line Items]          
Expected timing of satisfaction, period (in years)   1 year      
Cooperative Incentive Promotion Costs          
Property, Plant and Equipment [Line Items]          
Advertising expense   $ 5,000 $ 342,000    
Personal Genomics Business          
Property, Plant and Equipment [Line Items]          
Contract with customer, liability   $ 1,100,000      
Furniture and fixtures          
Property, Plant and Equipment [Line Items]          
Estimated useful life (in years)   5 years      
Minimum | Building and Building Improvements          
Property, Plant and Equipment [Line Items]          
Estimated useful life (in years)   10 years      
Minimum | Machinery          
Property, Plant and Equipment [Line Items]          
Estimated useful life (in years)   3 years      
Minimum | Computer equipment and software          
Property, Plant and Equipment [Line Items]          
Estimated useful life (in years)   3 years      
Maximum | Stock Options          
Property, Plant and Equipment [Line Items]          
Award expiration period (in years)   7 years      
Maximum | Building and Building Improvements          
Property, Plant and Equipment [Line Items]          
Estimated useful life (in years)   39 years      
Maximum | Machinery          
Property, Plant and Equipment [Line Items]          
Estimated useful life (in years)   7 years      
Maximum | Computer equipment and software          
Property, Plant and Equipment [Line Items]          
Estimated useful life (in years)   5 years      
Uncollectible Trade Receivables          
Property, Plant and Equipment [Line Items]          
Bad debt expense   $ 1,000,000.0 $ 11,000,000.0