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Segment And Geographic Information (Summary of Revenue by Category) (Details) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenue $ 128,304,000 $ 130,513,000 $ 78,893,000
Product [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenue 108,699,000 113,505,000 65,424,000
Instrument [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenue 48,719,000 61,324,000 34,282,000
Consumable [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenue 59,980,000 52,181,000 31,142,000
Service and Other [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenue $ 19,605,000 $ 17,008,000 $ 13,469,000