Note 3 - Investments - Summary of Investments (Details) - USD ($) |
Jun. 30, 2026 |
Apr. 18, 2026 |
Dec. 31, 2025 |
|---|---|---|---|
| Equity Method Investments | $ 49,011,855 | $ 21,304,371 | |
| Alternative Measurement Method Investments | 18,201,065 | 18,201,065 | |
| Total Investments | 67,212,920 | 39,505,436 | |
| Sierra Springs Opportunity Fund, Inc. (SSOF) [Member] | |||
| Equity Method Investments | $ 49,011,855 | $ 20,225,000 | |
| Ownership percentage | 47.63% | 16.99% | |
| Research and Development Company [Member] | |||
| Equity Method Investments | $ 0 | $ 1,079,371 | |
| Ownership percentage | 0.00% | 40.00% | |
| Green Li-ion Pte, Ltd. [Member] | |||
| Ownership percentage | 11.98% | 11.98% | 13.34% |
| Alternative Measurement Method Investments | $ 18,201,065 | $ 18,201,065 |
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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 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 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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