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Property, Plant, and Equipment (Tables)
 3 Months Ended
Mar. 31, 2022
Property, Plant, and Equipment [Abstract]  
Property, Plant, and Equipment
Property, plant, and equipment consists of:

 
March 31,
2022
    
December 31,
2021
  
Land
  
$
22
    
$
22
  
Buildings and improvements
    
3,096
      
3,096
  
Leasehold improvements
    
5,389
      
5,374
  
Machinery and equipment
    
22,322
      
19,591
  
Furniture and fixtures
    
9,380
      
9,402
  
Gross property, plant and equipment
    
40,209
      
37,485
  
Accumulated depreciation
    
(19,642
)
    
(18,835
)
Net property, plant and equipment
  
$
20,567
    
$
18,650