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Fixed assets, net (Tables)
 12 Months Ended
Dec. 31, 2021
Fixed assets, net [Abstract]  
Fixed Assets, Net
The components of fixed assets, net are:

 
December 31,
  
(In thousands)
  
2021
    
2020
  
Tooling, machinery and equipment
  
$
6,694
    
$
9,508
  
Furniture and office equipment
    
1,660
      
1,706
  
Computer software and equipment
    
6,973
      
7,364
  
Leasehold improvements
    
2,872
      
2,873
  
     
18,199
      
21,451
  
Less: Accumulated depreciation and amortization
    
(16,736
)
    
(19,979
)
     
1,463
      
1,472
  
Construction in-process
    
1,221
      
478
  
   
$
2,684
    
$
1,950