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Note 18 - Accumulated Other Comprehensive Loss (Tables) | 3 Months Ended
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Mar. 31, 2025
Notes Tables |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
(in thousands) |  | Three months ended March 31, 2025 |
|  | Unrealized Gains (Losses) on Available-for-Sale Investments |  |  | Foreign Currency Translation Adjustments |  |  | Change in Fair Value of Debt Attributable to Instrument-Specific Credit Risk |  |  | Total Accumulated Other Comprehensive Loss |
Balance at December 31, 2024 |  | $ | (1,157 | ) |  | $ | (3,286 | ) |  | $ | 3,725 |  |  | $ | (718 | )
Other comprehensive income arising during the period |  |  | 413 |  |  |  | — |  |  |  | 14 |  |  |  | 427 |
Amounts reclassified from accumulated other comprehensive loss |  |  | (24 | ) |  |  | — |  |  |  | — |  |  |  | (24 | )
Net current-period other comprehensive income |  |  | 389 |  |  |  | — |  |  |  | 14 |  |  |  | 403 |
Balance at March 31, 2025 |  | $ | (768 | ) |  | $ | (3,286 | ) |  | $ | 3,739 |  |  | $ | (315 | )
(in thousands) |  | Three months ended March 31, 2024 |
|  | Unrealized Losses on Available-for-Sale Investments |  |  | Foreign Currency Translation Adjustments |  |  | Change in Fair Value of Debt Attributable to Instrument-Specific Credit Risk |  |  | Total Accumulated Other Comprehensive Loss |
Balance at December 31, 2023 |  | $ | (1,596 | ) |  | $ | (3,286 | ) |  | $ | 3,342 |  |  | $ | (1,540 | )
Other comprehensive (loss) income arising during the period |  |  | (58 | ) |  |  | — |  |  |  | 23 |  |  |  | (35 | )
Amounts reclassified from accumulated other comprehensive loss |  |  | (13 | ) |  |  | — |  |  |  | — |  |  |  | (13 | )
Net current-period other comprehensive (loss) income |  |  | (71 | ) |  |  | — |  |  |  | 23 |  |  |  | (48 | )
Balance at March 31, 2024 |  | $ | (1,667 | ) |  | $ | (3,286 | ) |  | $ | 3,365 |  |  | $ | (1,588 | )
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] |
(in thousands) |  | Three months ended March 31, |
|  | 2025 |  |  | 2024 |
Reclassification of accumulated other comprehensive loss from unrealized gains (losses) on available-for-sale investments to: |  |  |  |  |  |  |  |
Net realized gains |  | $ | 24 |  |  | $ | 13 |
Loss from continuing operations before income tax (benefit) expense |  |  | 24 |  |  |  | 13 |
Income tax (benefit) expense |  |  | — |  |  |  | — |
Loss from continuing operations, net of taxes |  |  | 24 |  |  |  | 13 |
Income from discontinued operations, net of taxes |  |  | — |  |  |  | — |
Net loss |  | $ | 24 |  |  | $ | 13 |

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