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Note 11 - Fair Value Measurements (Details Textual) |  |  |  | 3 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 30, 2026 USD ($) | Aug. 13, 2025 USD ($) $ / shares shares | Aug. 12, 2025 USD ($) $ / shares shares | Mar. 31, 2026 USD ($) $ / shares shares | Mar. 31, 2025 USD ($) $ / shares | Dec. 31, 2025 $ / shares | Feb. 28, 2025 USD ($)
Share Price (in dollars per share) | $ / shares |  | $ 3.17 | $ 3.17 | $ 3.05 | $ 2.44 | $ 3.76 |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings |  |  |  | $ (722,015) | $ (1,190,803) |  |
Derivative, Gain (Loss) on Derivative, Net |  |  |  | (722,015) | $ (1,190,803) |  |
Precedent Agreement [Member] |  |  |  |  |  |  |
Guarantor Obligations, Current Carrying Value |  |  |  | $ 475,000 |  |  |
Measurement Input, Cap Rate [Member] | Precedent Agreement [Member] |  |  |  |  |  |  |
Guaranty, Measurement Input |  |  |  | 0.35 |  |  |
Marathon SAFE Note Liability [Member] |  |  |  |  |  |  |
Convertible Debt, Fair Value Disclosures |  |  |  |  |  |  | $ 12,000,000
Marathon SAFE Note Liability [Member] | Measurement Input, Discount Period [Member] | Minimum [Member] |  |  |  |  |  |  |
Debt Instrument, Measurement Input |  |  |  |  |  |  | 0.25
Marathon SAFE Note Liability [Member] | Measurement Input, Discount Period [Member] | Maximum [Member] |  |  |  |  |  |  |
Debt Instrument, Measurement Input |  |  |  |  |  |  | 0.84
Georges Trust [Member] |  |  |  |  |  |  |
Investment Owned, Balance, Shares (in shares) | shares |  |  |  | 1,500,000 |  |  |
Georges Trust Derivative Instrument [Member] |  |  |  |  |  |  |
Proceeds from Convertible Debt | $ 4,782,886 | $ 4,653,886 |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings |  |  |  | $ (1,194,000) |  |  |
Georges Trust Derivative Instrument [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings |  |  |  | (1,194,000) |  |  |
Alvin Fund Derivative Instrument [Member] |  |  |  |  |  |  |
Proceeds from Convertible Debt |  |  | $ 4,504,318 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings |  |  |  | 471,985 |  |  |
Marathon SAFE Note Liability [Member] |  |  |  |  |  |  |
Convertible Debt, Fair Value Disclosures |  |  |  | $ 12 |  |  |
Marathon SAFE Note Liability [Member] | Measurement Input, Discount Rate [Member] |  |  |  |  |  |  |
Derivative Liability, Measurement Input |  |  |  | 0.35 | 0.35 |  | 35
Marathon SAFE Note Liability [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member] |  |  |  |  |  |  |
Derivative Liability, Measurement Input |  |  |  | 0.25 | 0.25 |  |
Marathon SAFE Note Liability [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member] |  |  |  |  |  |  |
Derivative Liability, Measurement Input |  |  |  | 0.75 | 0.84 |  |
Marathon SAFE Note Liability [Member] | Measurement Input, Discount Period [Member] | Minimum [Member] |  |  |  |  |  |  |
Debt Instrument, Measurement Input |  |  |  | 0.25 |  |  |
Marathon SAFE Note Liability [Member] | Measurement Input, Discount Period [Member] | Maximum [Member] |  |  |  |  |  |  |
Debt Instrument, Measurement Input |  |  |  | 0.75 |  |  |
Marathon SAFE Note Liability [Member] | Measurement Input, Cap Rate [Member] |  |  |  |  |  |  |
Debt Instrument, Measurement Input |  |  |  | 35 |  |  |
Conversion of The Amended GHF, inc. 2021 Notes Into Common Stock [Member] |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares |  | 1,500,000 |  |  |  |  |
Debt Conversion, Converted Instrument, Amount |  | $ 4,755,000 |  |  |  |  |
Conversion of True Up Provision [Member] |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Amount |  | $ 101,114 |  | $ 129,000 |  |  |
Conversion Of The Alvin Fund 2022 Note and Alvin Fund 2023 Note Into Common Shares [Member] |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares |  |  | 1,400,000 |  |  |  |
Debt Conversion, Converted Instrument, Amount |  |  | $ 4,438,000 |  |  |  |
Conversion of the Amended Alvin Fund 2022 Note into Common Shares [Member] |  |  |  |  |  |  |
Derivative Liability |  |  | $ 66,318 |  |  |  |
Derivative, Gain (Loss) on Derivative, Net |  |  |  | $ 471,985 |  |  |
Extinguishment of Alvin Fund Promissory Notes [Member] |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares |  |  |  | 1,400,000 |  |  |
Debt Conversion, Converted Instrument, Amount |  |  |  | $ 5,592,009 |  |  |
Proceeds From Conversion of Debt Instrument in Excess of Amounts Owed |  |  |  | $ 1,231,667 |  |  |

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- Definition Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-10 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 28 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-28 Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2E -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E + Details
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- Definition The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-3 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. 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