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Note 6 - Property, Plant and Equipment
 6 Months Ended
Jun. 30, 2023
Notes to Financial Statements  
Property, Plant and Equipment Disclosure [Text Block]

6. PROPERTY, PLANT AND EQUIPMENT

 

The Company’s property, plant and equipment at June 30, 2023 and  December 31, 2022 consisted of the following (in thousands):

 

  

June 30,

  

December 31,

 
  

2023

  

2022

 

Liquefaction plants and systems

 $48,149  $47,636 

Real property and buildings

  2,066   2,057 

Vehicles and tanker trailers and equipment

  51,575   52,647 

Computer and office equipment

  458   470 

Construction in progress

  8,939   527 

Leasehold improvements

  32   31 
   111,219   103,368 

Less: accumulated depreciation

  (59,726)  (55,699)
  $51,493  $47,669 

 

Depreciation expense totaled $2.0 million and $2.2 million for the three months ended June 30, 2023 and 2022, respectively, all of which is included in the Condensed Consolidated Statements of Operations as a separate line item. Depreciation expense totaled $4.0 million and $4.5 million for the six months ended June 30, 2023 and 2022, respectively, all of which is included in the Condensed Consolidated Statements of Operations as a separate line item.