Note 5 - Accumulated Other Comprehensive Income - Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|||
| Balance | $ 52,617 | $ 48,491 | ||
| Other comprehensive income, net | 3 | 10 | ||
| Balance | 52,329 | 52,617 | ||
| AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] | ||||
| Balance | [1] | 0 | (10) | |
| Other comprehensive income before reclassifications | [1] | 3 | 10 | |
| Other comprehensive income, net | [1] | 3 | 10 | |
| Balance | [1] | $ 3 | $ 0 | |
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| X | ||||||||||
- Definition Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Details
|