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Properties, Plant and Equipment, Net
12 Months Ended
Jun. 30, 2022
Property, Plant and Equipment [Abstract]  
Properties, Plant and Equipment, Net
4. Properties, Plant and Equipment
Properties, plant, and equipment consisted of the following at June 30:
 
Asset category
  
Depreciation
method
    
Estimated
useful life
(in years)
    
2022
    
2021
 
                   (in thousands)  
Land
     N/A        —        $ 1,533      $ 658  
Buildings
    
Straight-line
      
7-15
       873        717  
Vehicles
     Straight-line        5        276        73  
Plant and equipment
     Straight-line       
5-10
       340        92  
                      
 
 
    
 
 
 
                         3,022        1,540  
Less accumulated depreciation
                       (151      (45
                      
 
 
    
 
 
 
Properties, plant and equipment, net
                     $ 2,871      $ 1,495  
                      
 
 
    
 
 
 
We recognized depreciation expense of $106
thousand and 
$31 thousand for the years ended June 30, 2022 and 2021, respectively.