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Note 10 - Shareholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  | December 31, 2023 |  |  | December 31, 2022 |
|  | Shares |  |  | Price (1) |  |  | Shares |  |  | Price (1) |
Stock options outstanding and exercisable |  |  | 23,176 |  |  | $ | 38.92 |  |  |  | 28,122 |  |  | $ | 54.03 |
Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block] |
Options Outstanding |  |  | Options Exercisable |
|  |  | Exercise Price |  |  | Remaining |  |  |  |  |  |  | Weighted Average |
Number of |  |  | Range |  |  | Weighted |  |  | Contractual |  |  | Number of |  |  | Exercise |
Shares |  |  | Low |  |  | High |  |  | Average |  |  | Term (years) |  |  | Shares |  |  | Price |
16,500 |  |  | $ | 7.20 |  |  | $ | 11.60 |  |  | $ | 10.00 |  |  |  | 3.8 |  |  |  | 16,500 |  |  | $ | 10.00 |
5,676 |  |  |  | 90.00 |  |  |  | 90.00 |  |  |  | 90.00 |  |  |  | 1.0 |  |  |  | 5,676 |  |  |  | 90.00 |
1,000 |  |  |  | 226.20 |  |  |  | 226.20 |  |  |  | 226.20 |  |  |  | 0.7 |  |  |  | 1,000 |  |  |  | 226.20 |
23,176 |  |  | $ | 7.20 |  |  | $ | 226.20 |  |  | $ | 38.92 |  |  |  | 3.0 |  |  |  | 23,176 |  |  | $ | 38.92 |
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] |
|  |  |  |  |  | Weighted-Avg. |
|  |  |  |  |  | Grant Date |
|  |  |  |  |  | Fair Value |
|  | Shares |  |  | per Share |
Non-vested restricted stock at December 31, 2022 |  |  | 687,000 |  |  | $ | 3.79 |
Granted |  |  | 936,434 |  |  | $ | 2.18 |
Vested |  |  | (544,198 | ) |  | $ | 3.30 |
Modifications (accelerated vesting) |  |  | (164,000 | ) |  | $ | 2.85 |
Forfeited |  |  | (60,000 | ) |  | $ | 2.30 |
Non-vested restricted stock at December 31, 2023 |  |  | 855,236 |  |  | $ | 2.63 |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | Year Ended |
|  | December 31, |
|  | 2023 |  |  | 2022 |
|  | (in thousands) |
Stock compensation expense |  | $ | 2,293 |  |  | $ | 3,017 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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