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Note 12 - Stock-based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block] |
|  |  |  |  |  | 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 |  |  |  | 6.63 |  |  | $ | 7.42 |  |  |  | 566,673 |  |  | $ | 7.42 |
8.01+ |  |  | 96,125 |  |  |  | 2.03 |  |  |  | 25.22 |  |  |  | 96,125 |  |  |  | 25.22 |
|  |  | 662,798 |  |  |  | 5.96 |  |  | $ | 10.00 |  |  |  | 662,798 |  |  | $ | 10.00 |
|  |  |  |  |  | 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 |  |  | 240,000 |  |  |  | 6.42 |  |  | $ | 7.59 |  |  |  | 240,000 |  |  | $ | 7.59 |
|  |  |  |  |  | Weighted |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  | Average |  |  | Weighted |  |  |  |  |  |  | Weighted |
|  |  |  |  |  | Remaining |  |  | Average |  |  |  |  |  |  | Average |
Range of Exercise |  | Number |  |  | Contractual |  |  | Exercise |  |  | Options |  |  | Exercise |
Prices between |  | Outstanding |  |  | Life |  |  | Price |  |  | Exercisable |  |  | Price |
$0.01 - $4.00 |  |  | 733,334 |  |  |  | 1.13 |  |  | $ | 3.00 |  |  |  | - |  |  | $ | - |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  | Market Vesting Options |  |  | Time Vesting Options |  |  | Performance Vesting Options |
|  |  |  |  |  | Weighted |  |  |  |  |  |  | Weighted |  |  |  |  |  |  | Weighted |
|  |  |  |  |  | Average |  |  |  |  |  |  | Average |  |  |  |  |  |  | Average |
|  | Options |  |  | Exercise |  |  | Options |  |  | Exercise |  |  | Options |  |  | Exercise |
Date/Activity |  | Outstanding |  |  | Price |  |  | Outstanding |  |  | Price |  |  | Outstanding |  |  | Price |
Balance, December 31, 2022 |  |  | 633,334 |  |  |  | 3.00 |  |  |  | 662,910 |  |  |  | 10.02 |  |  |  | 240,000 |  |  | $ | 7.59 |
Granted |  |  | 100,000 |  |  |  | 3.00 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Forfeited or expired |  |  | - |  |  |  | - |  |  |  | (112 | ) |  |  | 162.00 |  |  |  | - |  |  |  | - |
Balance, December 31, 2023 |  |  | 733,334 |  |  |  | 3.00 |  |  |  | 662,798 |  |  |  | 10.00 |  |  |  | 240,000 |  |  | $ | 7.59 |
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding [Table Text Block] |
|  | Share Price Targets |  |  |  |  |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Guaranteed |  |  | Total |
Executive |  | $ | 6.00 |  |  | $ | 9.00 |  |  | $ | 12.00 |  |  | $ | 15.00 |  |  | $ | 18.00 |  |  | Price |  |  | Shares |
Mills Shares Vested |  |  | 16,667 |  |  |  | 33,334 |  |  |  | 50,000 |  |  |  | 66,667 |  |  |  | 83,334 |  |  |  | 83,334 |  |  |  | 333,334 |
Logan Shares Vested |  |  | 10,000 |  |  |  | 20,000 |  |  |  | 30,000 |  |  |  | 40,000 |  |  |  | 50,000 |  |  |  | 50,000 |  |  |  | 200,000 |
Percentage of Shares Vested |  |  | 5 | % |  |  | 10 | % |  |  | 15 | % |  |  | 20 | % |  |  | 25 | % |  |  | 25 | % |  |  |  |
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
Risk-free interest rate |  |  | 3.30 | %
Expected term (in years) |  |  | 2.68 |
Expected price volatility |  |  | 123.53 | %
Dividend yield |  |  | 0 | %
Risk-free interest rate |  |  | 1.60 | %
Expected term (in years) |  |  | 6.25 |
Expected price volatility |  |  | 97.78 | %
Dividend yield |  |  | 0 | %
Risk-free interest rate |  |  | 0.66 | %
Expected term (in years) |  |  | 6.25 |
Expected price volatility |  |  | 89.18 | %
Dividend yield |  |  | 0 | %

X
- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (e)(1) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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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 -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -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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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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