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Investments in Non-Marketable Securities - Narrative (Details) - USD ($)
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Jul. 31, 2021
Nov. 30, 2020
Marketable Securities [Line Items]          
Debt securities, available-for-sale         $ 1,000,000
Conversion, debt to equity       $ 1,300,000  
Interest income from amortization of discount $ 100,000        
Non-marketable equity securities 19,002,000   $ 14,002,000    
Unrealized or realized gains or losses 0 $ 0      
Convertible Debt          
Marketable Securities [Line Items]          
Debt securities, available-for-sale 0   0    
seqWell          
Marketable Securities [Line Items]          
Non-marketable equity securities $ 5,000,000   $ 0    
Series B-2 Preferred Stock          
Marketable Securities [Line Items]          
Debt conversion, shares issued (in shares) 207,070        
Series C Preferred Stock | seqWell          
Marketable Securities [Line Items]          
Non-marketable equity securities purchased (in shares) 1,000,000