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Geographic Sales Information - Revenue by Geographic Area (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Revenues    
Revenue $ 25,205 $ 28,967
United States    
Revenues    
Revenue 12,096 14,042
All other countries    
Revenues    
Revenue $ 13,109 $ 14,925