XML 68 R54.htm IDEA: XBRL DOCUMENT v3.25.1
Note 9 - Commitments and Contingencies - Asset Retirement Obligations (Details) - USD ($)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Asset Retirement Obligations, Beginning Balance $ 571,000 $ 571,000
Liabilities Settled 0 0
Revision of Estimate 0 0
Retirement Obligations, Ending Balance $ 571,000 $ 571,000