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Revenue (Tables)
 12 Months Ended
Dec. 31, 2022
Revenue [Abstract]  
Disaggregation of Revenue
The disaggregation of revenue is based on type and geographical region. The following table presents revenue from contracts with customers:

 
  
Year ended December 31, 2022
    
Year ended December 31, 2021
  
 
  
United States
    
International
    
Total
    
United States
    
International
    
Total
  
Accessory and parts revenue
  
$
9,790
    
$
72
    
$
9,862
    
$
7,770
    
$
302
    
$
8,072
  
System revenue
    
5,179
      
149
      
5,328
      
2,766
      
350
      
3,116
  
License fees and other
    
283
      
38
      
321
      
135
      
60
      
195
  
Product Revenue
  
$
15,252
    
$
259
    
$
15,511
    
$
10,671
    
$
712
    
$
11,383
  
Rental Income
    1,231       -       1,231       1,627       -       1,627  
Total Revenue
  $
16,483     $
259     $
16,742

$
 12,298

$
 712

$
 13,010