Note 4 - Supplemental Balance Sheet Information - Composition of Intangible Assets (Details) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Cost | $ 25,529 | $ 25,595 |
| Accumulated Amortization | 14,878 | 14,662 |
| Net | 10,651 | 10,933 |
| Customer Relationships [Member] | ||
| Cost | 18,286 | 18,333 |
| Accumulated Amortization | 8,567 | 8,360 |
| Net | 9,719 | 9,973 |
| Patented Technology [Member] | ||
| Cost | 5,743 | 5,762 |
| Accumulated Amortization | 5,625 | 5,635 |
| Net | 118 | 127 |
| Other Intangible Assets [Member] | ||
| Cost | 1,500 | 1,500 |
| Accumulated Amortization | 686 | 667 |
| Net | $ 814 | $ 833 |
| X | ||||||||||
- Definition Amount of accumulated amortization of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before accumulated amortization, of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount, after accumulated amortization, of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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