Note 2 - Investments - Summary of Investments (Details) - USD ($) |
Mar. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Equity Method Investments | $ 1,151,371 | $ 1,109,933 |
| Equity Method Investments | 1,151,371 | 1,109,933 |
| Alternative Measurement Method Investments | 38,076,065 | 37,776,065 |
| Total Investments | 39,594,103 | 38,885,998 |
| Green Li-ion Pte, Ltd. [Member] | ||
| Alternative Measurement Method Investments | $ 18,201,065 | $ 18,201,065 |
| Ownership percentage | 13.34% | 13.34% |
| Sierra Springs Opportunity Fund, Inc. (SSOF) [Member] | ||
| Alternative Measurement Method Investments | $ 19,875,000 | $ 19,575,000 |
| Ownership percentage | 17.46% | 17.27% |
| Research and Development Company [Member] | ||
| Equity Method Investments | $ 1,151,371 | $ 1,109,933 |
| Ownership percentage | 40.00% | 40.00% |
| Equity Method Investments | $ 1,151,371 | $ 1,109,933 |
| Hexas SAFE [Member] | ||
| Hexas Biomass Inc. | $ 366,667 | $ 0 |
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- Definition Fair value of investment other than investment in equity security, investment in debt security and equity method investment. Includes, but is not limited to, investment in certain entities that calculate net asset value per share. Example includes, but is not limited to, investment in hedge fund, venture capital fund, private equity fund, and real estate partnership or fund. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Sum of the carrying amounts as of the balance sheet date of all investments. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. No definition available.
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