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Accrued Expenses (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Mar. 31, 2022
Accrued Expenses      
Warranty $ 1,916 $ 2,005 $ 1,998
Travel 1,188 1,121  
Legal and consulting 803 730  
In-transit inventory 485 3,228  
Clinical studies 230 276  
Sales and use tax 114 147  
Other 1,865 1,733  
Total $ 6,601 $ 9,240