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Note 9 - Stock Based Compensation (Details Textual) - USD ($) |  | 6 Months Ended
--- | --- | ---
Jun. 21, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Officers, Directors, and Employees [Member] |  |  |
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares) |  | 76,397 | 219,536
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation |  | $ 136,036 | $ 319,244
Shares Withheld, Price Per Share (in dollars per share) |  | $ 1.78 | $ 1.45
Employees and Directors [Member] | Restricted Stock [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 966,000 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) | 10 years |  |
Shares Issued, Price Per Share (in dollars per share) | $ 1.55 |  |
Employees and Directors [Member] | Restricted Stock Units (RSUs) [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 277,200 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) | 3 years |  |
Shares Issued, Price Per Share (in dollars per share) | $ 1.55 |  |
Louis Hoch [Member] | Restricted Stock [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 160,000 |  |
Louis Hoch [Member] | Restricted Stock Units (RSUs) [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 21,000 |  |
Michael White [Member] | Restricted Stock [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 120,000 |  |
Michael White [Member] | Restricted Stock Units (RSUs) [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 18,000 |  |
Greg Carter [Member] | Restricted Stock [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 80,000 |  |
Greg Carter [Member] | Restricted Stock Units (RSUs) [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 18,000 |  |
Houston Frost [Member] | Restricted Stock [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 40,000 |  |
Houston Frost [Member] | Restricted Stock Units (RSUs) [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 12,000 |  |
Non Employee Directors [Member] | Restricted Stock Units (RSUs) [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 84,000 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) | 3 years |  |
Shares Issued, Price Per Share (in dollars per share) | $ 1.55 |  |
Blaise Bender [Member] | Restricted Stock Units (RSUs) [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 21,000 |  |
Brad Rollins [Member] | Restricted Stock Units (RSUs) [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 21,000 |  |
Ernesto Beyer [Member] | Restricted Stock Units (RSUs) [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 21,000 |  |
Michelle Miller [Member] | Restricted Stock Units (RSUs) [Member] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 21,000 |  |

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- Definition Amount of decrease to equity for grantee's tax withholding obligation for award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-4 + Details
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-4 + Details
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