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Note 13 - Employee Stock Plans (Tables) | 3 Months Ended
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Mar. 31, 2024
Notes Tables |
Nonvested Restricted Stock Shares Activity [Table Text Block] |
|  |  |  |  |  |  |  |  |  | Weighted |
|  |  |  |  |  | Weighted |  |  | Average |
|  |  |  |  |  | Average |  |  | Remaining |
|  |  |  |  |  | Grant Date |  |  | Contractual |
|  | Shares |  |  | Fair value |  |  | Term (in years) |
Unvested at December 31, 2023 |  |  | 183,223 |  |  | $ | 36.54 |  |  |  | 1.72 |
Granted |  |  | 191,317 |  |  | $ | 28.82 |  |  |  | 1.28 |
Vested |  |  | (134,934 | ) |  | $ | 38.54 |  |  |  | - |
Cancelled and forfeited |  |  | (2,435 | ) |  | $ | 33.91 |  |  |  | - |
Unvested at March 31, 2024 |  |  | 237,171 |  |  | $ | 29.20 |  |  |  | 1.75 |
Expected to vest in the future at March 31, 2024 |  |  | 231,638 |  |  | $ | 29.20 |  |  |  | 1.75 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Subparagraph (c) -Paragraph 2 -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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