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Note 15 - Supplemental Disclosures of Cash Flow Information (Tables)
 6 Months Ended
Jun. 30, 2024
Notes Tables  
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
  

Six Months Ended June 30,

 
  

2024

  

2023

 
  

(in thousands)

 

Cash paid for interest

 $(382) $(558)

Cash received for income taxes

  (70)  - 
         

Investing activities:

        

Change in capital expenditure accruals

  (88)  50 

Change in accrual for acquisition costs

  (155)  - 

Common stock issued for acquisition of properties

  (2,678)  - 

Asset retirement obligations

  (302)  (32)

Financing activities:

        

Accrual for repurchase of common stock

  (59)   

Financing of insurance premiums with note payable

  -   654