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Note 20 - Related Party Transactions (Tables)
12 Months Ended
Dec. 31, 2023
Notes Tables  
Condensed Balance Sheet [Table Text Block]
  

2023

  

2022

 

Accounts receivable

        

Biodiesel, petrodiesel, blends and other petroleum products

 $1  $6 

Total accounts receivable

 $1  $6 

Prepaid expenses

        

Administrative services and other

 $12  $12 

Total prepaid expenses

 $12  $12 

Accounts payable

        

Natural gas and fuel purchases

 $-  $7,788 

Travel and administrative services

  42   11 

Total accounts payable

 $42  $7,799 

Accrued liabilities

        

Travel and administrative services

 $-  $1 

Total accrued liabilities

 $-  $1 
Condensed Income Statement [Table Text Block]
  

Years ended December 31:

 
  

2023

  

2022

  

2021

 

Revenues

            

Biodiesel, petrodiesel, blends and other petroleum products

 $22  $459  $1,261 

Total revenues

 $22  $459  $1,261 

Cost of goods sold

            

Biodiesel, petrodiesel, blends, and other petroleum products

 $-  $5,425  $5,233 

Natural gas purchases

  (315)  -   11,360 

Total cost of goods sold

 $(315) $5,425  $16,593 

Distribution

            

Distribution and related services

 $176  $174  $176 

Total distribution

 $176  $174  $176 

Selling, general and administrative expenses

            

Commodity trading advisory fees

 $308  $307  $308 

Travel and administrative services

  188   184   221 

Income tax, consulting services and other

  120   120   120 

Total selling, general, and administrative expenses

 $616  $611  $649