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Note 10 - Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2025
Notes Tables |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | Foreign Currency Translation Adjustments |  |  | Unrealized Gains (Losses) on Available-For-Sale Investments |  |  | Total |
Balance, December 31, 2024 |  | $ | (1,275 | ) |  | $ | (26 | ) |  | $ | (1,301 | )
Other comprehensive income |  |  | 501 |  |  |  | 16 |  |  |  | 517 |
Balance, December 31, 2025 |  | $ | (774 | ) |  | $ | (10 | ) |  | $ | (784 | )

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