Inventory (Tables)
 12 Months Ended
Dec. 31, 2021
Inventory Disclosure [Abstract]  
Schedule of inventory
Inventory consisted of the following as of December 31, 2021 and 2020 (in thousands):
 
    
December 31,
2021
     
December 31,
2020
  
Raw material
    $ 6,850      $ 4,225  
Work-in-process
      1,452        —    
Finished goods
      14,500        9,475  
    
 
 
     
 
 
  
Total inventory
      22,802        13,700  
Inventory reserve
      (8,588 )       (7,843 ) 
    
 
 
     
 
 
  
Total inventory, net of reserve
    $ 14,214      $ 5,857