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Property, Plant and Equipment
3 Months Ended
Mar. 31, 2022
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment

Note 5 - Property, Plant and Equipment

 

The components of property, plant and equipment are as follows (in thousands):

 

  

March 31,

2022

  

December 31,

2021

   Estimated Useful Life
Land  $352   $352    
Building improvements   1,729    1,729   10-39 years
Machinery   4,740    4,740   3-7 years
Lab equipment   4,936    4,330   3-7 years
Computer equipment   1,589    1,211   3-5 years
Furniture and fixtures   468    468   5 years
 Property, Plant and Equipment, Gross   13,814    12,830    
Less: accumulated depreciation   (7,374)   (6,883)   
Total property, plant and equipment, net  $6,440   $5,947    

 

Depreciation expense incurred for the three months ended March 31, 2022 and 2021 was $491,000 and $428,000, respectively.