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Note 13 - Stock-based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2022
Notes Tables |
Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block] |
2023 |  | $ | 649,000 |
2024 |  | $ | 641,000 |
2025 |  | $ | 670,000 |
2026 |  | $ | 343,000 |
2027 |  | $ | 111,000 |
Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] |
|  | Restricted Stock |
|  | Number of Shares |  |  | Weighted- Average Grant Date Fair Value |
Nonvested—January 1, 2022 |  |  | 239,212 |  |  | $ | 9.25 |
Granted |  |  | 34,475 |  |  |  | 37.18 |
Canceled/forfeited/expired |  |  | - |  |  |  | - |
Vested |  |  | (37,855 | ) |  |  | 10.36 |
Nonvested—December 31, 2022: |  |  | 235,832 |  |  | $ | 13.15 |

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