Note 4 - Goodwill and Other Intangible Assets - Components of Identifiable Intangible Assets (Details) - USD ($) $ in Thousands |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Gross carrying value | $ 72,213 | $ 72,023 |
| Accumulated amortization | 39,061 | 36,204 |
| Other intangibles, net | 33,152 | 35,819 |
| Product Technology and Intellectual Property [Member] | ||
| Gross carrying value | 29,549 | 29,549 |
| Accumulated amortization | 20,038 | 18,709 |
| Other intangibles, net | 9,511 | 10,840 |
| Trademarks, Tradenames and Licenses [Member] | ||
| Gross carrying value | 3,767 | 3,767 |
| Accumulated amortization | 2,437 | 2,261 |
| Other intangibles, net | 1,330 | 1,506 |
| Customer Relationships [Member] | ||
| Gross carrying value | 37,266 | 37,171 |
| Accumulated amortization | 15,034 | 13,709 |
| Other intangibles, net | 22,232 | 23,462 |
| Other Intangible Assets [Member] | ||
| Gross carrying value | 1,631 | 1,536 |
| Accumulated amortization | 1,552 | 1,525 |
| Other intangibles, net | $ 79 | $ 11 |