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Note 9 - Stock-based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2025
Notes Tables |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2025 |  | 2024 |  | 2025 |  | 2024
Restricted stock awards |  | $ | 18 |  |  | $ | 9 |  |  | $ | 44 |  |  | $ | 27 |
Total |  | $ | 18 |  |  | $ | 9 |  |  | $ | 44 |  |  | $ | 27 |
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] |
|  | Number of Shares |  | Weighted Average Grant Date Fair Value |  | Aggregate Grant Date Fair Value
Balance as of December 31, 2024 |  |  | 20,118 |  |  | $ | 5.22 |  |  | $ | 105 |
Granted |  |  | 16,156 |  |  |  | 6.50 |  |  |  | 105 |
Vested |  |  | — |  |  |  | — |  |  |  | — |
Canceled |  |  | — |  |  |  | — |  |  |  | — |
Balance as of September 30, 2025 |  |  | 36,274 |  |  | $ | 5.79 |  |  | $ | 210 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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