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Property, Plant, and Equipment
 6 Months Ended
Jun. 30, 2022
Property, Plant and Equipment [Abstract]  
Property, Plant, and Equipment
(5)
Property, Plant, and Equipment
Property, plant, and equipment consist of the following (in thousands):
 
    
June 30, 2022
     
December 31, 2021
     
Estimated Useful Life
  
Buildings and land
    $ 1,271      $ 1,222       
30 years -Buildings
  
Enterprise hardware and software
      1,853        1,858        3 years  
Leaseholds
      1,765        1,796        Lesser of lease term or
estimated useful life		  
 
Equipment
      1,221        1,094        7 years  
Furniture
      201        203        5 years  
    
 
 
     
 
 
           
Property, plant and equipment, gross
      6,311        6,173           
Accumulated depreciation
      (4,854 )       (4,825 )          
    
 
 
     
 
 
           
Property, plant and equipment, net
    $ 1,457      $ 1,348           
    
 
 
     
 
 
           
Depreciation expense for the six months ended June 30, 2022 was approximately $65,000 as compared to approximately $78,000 for the same period in 2021.