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Note 9 - Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2026
Notes Tables |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | Foreign Currency Translation Adjustments |  |  | Unrealized Losses on Available-For-Sale Investments |  |  | Total |
Balance, December 31, 2025 |  | $ | (774 | ) |  | $ | (10 | ) |  | $ | (784 | )
Other comprehensive income (loss) |  |  | 16 |  |  |  | (7 | ) |  |  | 9 |
Balance, March 31, 2026 |  | $ | (758 | ) |  | $ | (17 | ) |  | $ | (775 | )

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