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Note 13 - Employee Stock Plans (Tables) | 9 Months Ended
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Sep. 30, 2023
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, 2022 |  |  | 111,264 |  |  | $ | 41.89 |  |  |  | 1.76 |
Granted |  |  | 120,834 |  |  | $ | 39.37 |  |  |  | 1.74 |
Vested |  |  | (79,592 | ) |  | $ | 44.47 |  |  |  | - |
Cancelled and forfeited |  |  | (3,805 | ) |  | $ | 39.43 |  |  |  | - |
Unvested at September 30, 2023 |  |  | 148,701 |  |  | $ | 38.52 |  |  |  | 1.86 |
Expected to vest in the future at September 30, 2023 |  |  | 144,512 |  |  | $ | 38.52 |  |  |  | 1.86 |

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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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