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Accrued Expenses (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Sep. 30, 2022
Accrued Expenses      
Warranty $ 1,872 $ 2,005 $ 1,732
Travel 1,019 1,121  
Legal and consulting 821 730  
Clinical studies 379 3,228  
In-transit inventory 385 276  
Sales and use tax 142 147  
Other 709 1,733  
Total $ 5,327 $ 9,240