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Note 11 - Stock-based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2024
Notes Tables |
Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block] |
Time Vesting Options |  |  |  |  |  | Weighted |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  | Average |  |  | Weighted |  |  |  |  |  |  | Weighted |
|  |  |  |  |  | Remaining |  |  | Average |  |  |  |  |  |  | Average |
Range of Exercise |  | Number |  |  | Contractual |  |  | Exercise |  |  | Options |  |  | Exercise |
Prices between |  | Outstanding |  |  | Life |  |  | Price |  |  | Exercisable |  |  | Price |
$4.01 - $8.00 |  |  | 566,673 |  |  |  | 6.38 |  |  | $ | 7.42 |  |  |  | 566,673 |  |  | $ | 7.42 |
$8.01+ |  |  | 95,791 |  |  |  | 1.78 |  |  |  | 25.06 |  |  |  | 95,791 |  |  | $ | 25.06 |
|  |  | 662,464 |  |  |  | 5.72 |  |  | $ | 9.97 |  |  |  | 662,464 |  |  |  |  |
Performance Vesting Options |  |  |  |  |  | Weighted |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  | Average |  |  | Weighted |  |  |  |  |  |  | Weighted |
|  |  |  | Remaining |  |  | Average |  |  |  |  |  |  | Average |
Number |  |  | Contractual |  |  | Exercise |  |  | Options |  |  | Exercise |
Outstanding |  |  | Life |  |  | Price |  |  | Exercisable |  |  | Price |
| 240,000 |  |  |  | 6.17 |  |  | $ | 7.59 |  |  |  | 240,000 |  |  | $ | 7.59 |
| 240,000 |  |  |  | 6.17 |  |  | $ | 7.59 |  |  |  | 240,000 |  |  |  |  |
Market Vesting Options |  |  |  |  |  | Weighted |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  | Average |  |  | Weighted |  |  |  |  |  |  | Weighted |
|  |  |  | Remaining |  |  | Average |  |  |  |  |  |  | Average |
Number |  |  | Contractual |  |  | Exercise |  |  | Options |  |  | Exercise |
Outstanding |  |  | Life |  |  | Price |  |  | Exercisable |  |  | Price |
| 733,334 |  |  |  | 0.88 |  |  | $ | 3.00 |  |  |  | - |  |  | $ | - |
| 733,334 |  |  |  | 0.88 |  |  | $ | 3.00 |  |  |  | - |  |  |  |  |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Performance Vesting |
|  | Market Vesting Options |  |  | Time Vesting Options |  |  | Options |
|  |  |  |  |  | Weighted |  |  |  |  |  |  | Weighted |  |  |  |  |  |  | Weighted |
|  |  |  |  |  | Average |  |  |  |  |  |  | Average |  |  |  |  |  |  | Average |
|  | Options |  |  | Exercise |  |  | Options |  |  | Exercise |  |  | Options |  |  | Exercise |
Date/Activity |  | Outstanding |  |  | Price |  |  | Outstanding |  |  | Price |  |  | Outstanding |  |  | Price |
Balance, December 31, 2023 |  |  | 733,334 |  |  |  | 3.00 |  |  |  | 662,798 |  |  | $ | 10.00 |  |  |  | 240,000 |  |  | $ | 7.59 |
Granted |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Forfeited or expired |  |  | - |  |  |  | - |  |  |  | (334 | ) |  |  | 71.10 |  |  |  | - |  |  |  | - |
Balance, March 31, 2024 |  |  | 733,334 |  |  |  | 3.00 |  |  |  | 662,464 |  |  |  | 9.97 |  |  |  | 240,000 |  |  | $ | 7.59 |

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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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