Note 5 - Common Stock (Details Textual) - USD ($) $ / shares in Units, $ in Thousands |
6 Months Ended | ||
|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Dec. 31, 2024 |
|
| Common Stock, No Par Value (in dollars per share) | $ 0 | $ 0 | |
| Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period | 0 | 26,192 | |
| Proceeds from Stock Options Exercised | $ 103 | ||
| Minimum [Member] | |||
| Shares Issued, Price Per Share | $ 3.38 | ||
| Maximum [Member] | |||
| Shares Issued, Price Per Share | $ 5.62 | ||
| X | ||||||||||
- Definition Face amount per share of no-par value common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of cash inflow from exercise of option under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Per share or per unit amount of equity securities issued. No definition available.
|
| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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