Property and Equipment, net
 12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Property and Equipment, net
Note 5. Property and Equipment, net
Property and equipment consist of the following:
 
(in thousands)
   
December 31,
2021
     
December 31,
2020
  
Machinery and equipment
    $ 6,091      $ 4,761  
Leasehold improvements
      2,262        2,190  
Computer equipment
      1,764        1,109  
Furniture and fixtures
      367        345  
Computer software
      250        246  
Construction in process
      1,741        36  
    
 
 
     
 
 
  
Property and equipment, gross
      12,475        8,687  
Less: Accumulated depreciation
      (6,126 )       (4,406 ) 
    
 
 
     
 
 
  
Property and equipment, net
    $ 6,349      $ 4,281  
    
 
 
     
 
 
  
Depreciation expense for property and equipment was $1.7 million and $1.8 million for the years ended December 31, 2021 and 2020, respectively. Disposal of property and equipment amounted to zero and $0.1 million for the years ended December 31, 2021 and 2020, respectively.