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Note 11 - Asset Retirement Obligations (Tables)
12 Months Ended
Dec. 31, 2023
Notes Tables  
Schedule of Change in Asset Retirement Obligation [Table Text Block]

Balance, January 1, 2022

 $3,162,725 

Additions

  200,496 

Accretion expense

  206,359 

Liabilities settled

  - 

Balance, December 31, 2022

 $3,569,580 

Additions

  8,904 

Accretion expense

  216,501 

Liabilities settled

  - 

Balance, December 31, 2023

 $3,794,985