Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Note Receivable (Details Textual)

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Note 4 - Note Receivable (Details Textual) - LiNiCo [Member] - USD ($)
 12 Months Ended
Dec. 31, 2023
Jun. 30, 2024
Investment Owned, Balance, Shares (in shares) 2,000,000  
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount $ 1,400,000  
Receivable, Investment, Sale $ 600,000 $ 400,000