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Note 16 - Share-based Payments (Tables) | 9 Months Ended
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Sep. 30, 2025
Notes Tables |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  | Three Months Ended September 30, 2025 |  |  | Three Months Ended September 30, 2024 |
|  | Number of shares |  |  | Weighted average exercise price per share |  |  | Number of shares |  |  | Weighted average exercise price per share |
Outstanding, beginning of period |  |  | 1,046,219 |  |  | $ | 39.82 |  |  |  | 1,186,961 |  |  | $ | 54.30 |
Granted |  |  | 23,000 |  |  |  | 17.38 |  |  |  | 146,408 |  |  |  | 22.02 |
Exercised |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Forfeited |  |  | (2,760 | ) |  |  | 24.55 |  |  |  | (19,402 | ) |  |  | 33.78 |
Expired |  |  | (114,988 | ) |  |  | 50.35 |  |  |  | (123,507 | ) |  |  | 54.87 |
Outstanding, end of period |  |  | 951,471 |  |  |  | 37.63 |  |  |  | 1,190,460 |  |  |  | 45.71 |
Options exercisable, end of period |  |  | 535,018 |  |  | $ | 52.34 |  |  |  | 625,627 |  |  | $ | 59.02 |
|  | Nine Months Ended September 30, 2025 |  |  | Nine Months Ended September 30, 2024 |
|  | Number of shares |  |  | Weighted average exercise price per share |  |  | Number of shares |  |  | Weighted average exercise price per share |
Outstanding, beginning of period |  |  | 1,122,700 |  |  | $ | 45.86 |  |  |  | 1,132,632 |  |  | $ | 54.61 |
Granted |  |  | 129,814 |  |  |  | 18.94 |  |  |  | 323,358 |  |  |  | 21.02 |
Exercised |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Forfeited |  |  | (48,528 | ) |  |  | 29.53 |  |  |  | (92,374 | ) |  |  | 24.73 |
Expired |  |  | (252,515 | ) |  |  | 56.65 |  |  |  | (173,156 | ) |  |  | 56.33 |
Outstanding, end of period |  |  | 951,471 |  |  |  | 37.63 |  |  |  | 1,190,460 |  |  |  | 45.71 |
Options exercisable, end of period |  |  | 535,018 |  |  | $ | 52.34 |  |  |  | 625,627 |  |  | $ | 59.02 |
|  | Three Months Ended September 30, 2025 |  |  | Three Months Ended September 30, 2024 |
|  | Number of shares |  |  | Weighted average exercise price per share |  |  | Number of shares |  |  | Weighted average exercise price per share |
Outstanding, beginning of period |  |  | 15,626,013 |  |  | $ | 1.33 |  |  |  | 16,779,846 |  |  | $ | 1.30 |
Granted |  |  | 264,250 |  |  |  | 1.81 |  |  |  | 341,500 |  |  |  | 1.78 |
Exercised |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Forfeited |  |  | (58,742 | ) |  |  | 1.55 |  |  |  | (864,167 | ) |  |  | 1.28 |
Expired |  |  | (171,695 | ) |  |  | 1.31 |  |  |  | (154,701 | ) |  |  | 1.27 |
Outstanding, end of period |  |  | 15,659,826 |  |  |  | 1.34 |  |  |  | 16,102,478 |  |  |  | 1.31 |
Options exercisable, end of period |  |  | 13,032,265 |  |  | $ | 1.28 |  |  |  | 9,602,704 |  |  | $ | 1.27 |
|  | Nine Months Ended September 30, 2025 |  |  | Nine Months Ended September 30, 2024 |
|  | Number of shares |  |  | Weighted average exercise price per share |  |  | Number of shares |  |  | Weighted average exercise price per share |
Outstanding, beginning of period |  |  | 15,887,997 |  |  | $ | 1.27 |  |  |  | 16,333,233 |  |  | $ | 1.27 |
Granted |  |  | 653,250 |  |  |  | 1.79 |  |  |  | 1,261,000 |  |  |  | 1.75 |
Exercised |  |  | (24,420 | ) |  |  | 1.27 |  |  |  | - |  |  |  | - |
Forfeited |  |  | (264,923 | ) |  |  | 1.53 |  |  |  | (1,166,121 | ) |  |  | 1.29 |
Expired |  |  | (592,078 | ) |  |  | 1.30 |  |  |  | (325,634 | ) |  |  | 1.27 |
Outstanding, end of period |  |  | 15,659,826 |  |  |  | 1.34 |  |  |  | 16,102,478 |  |  |  | 1.31 |
Options exercisable, end of period |  |  | 13,032,265 |  |  | $ | 1.28 |  |  |  | 9,602,704 |  |  | $ | 1.27 |
|  | Three Months Ended September 30, 2025 |  |  | Three Months Ended September 30, 2024 |
|  | Number of shares |  |  | Weighted average exercise price per share |  |  | Number of shares |  |  | Weighted average exercise price per share |
Outstanding, beginning of period |  |  | 4,717,769 |  |  | $ | 6.00 |  |  |  | 6,969,256 |  |  | $ | 6.00 |
Granted |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Exercised |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Forfeited |  |  | (7,095 | ) |  |  | 6.00 |  |  |  | (350,269 | ) |  |  | 6.00 |
Expired |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Outstanding, end of period |  |  | 4,710,674 |  |  |  | 6.00 |  |  |  | 6,618,987 |  |  |  | 6.00 |
Options exercisable, end of period |  |  | 4,141,928 |  |  | $ | 6.00 |  |  |  | 4,200,364 |  |  | $ | 6.00 |
|  | Nine Months Ended September 30, 2025 |  |  | Nine Months Ended September 30, 2024 |
|  | Number of shares |  |  | Weighted average exercise price per share |  |  | Number of shares |  |  | Weighted average exercise price per share |
Outstanding, beginning of period |  |  | 5,959,660 |  |  | $ | 6.00 |  |  |  | 7,504,269 |  |  | $ | 6.00 |
Granted |  |  | - |  |  |  | - |  |  |  | 123,000 |  |  |  | 6.00 |
Exercised |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Forfeited |  |  | (98,753 | ) |  |  | 6.00 |  |  |  | (798,249 | ) |  |  | 6.00 |
Expired |  |  | (1,150,233 | ) |  |  | 6.00 |  |  |  | (210,033 | ) |  |  | 6.00 |
Outstanding, end of period |  |  | 4,710,674 |  |  |  | 6.00 |  |  |  | 6,618,987 |  |  |  | 6.00 |
Options exercisable, end of period |  |  | 4,141,928 |  |  | $ | 6.00 |  |  |  | 4,200,364 |  |  | $ | 6.00 |
Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block] |
|  | Options outstanding |  |  | Options exercisable |
Exercise price |  | Number outstanding |  |  | Weighted average exercise price per share |  |  | Weighted average remaining contractual life (years) |  |  | Aggregate intrinsic value |  |  | Number exercisable |  |  | Weighted average exercise price per share |  |  | Weighted average remaining contractual life (years) |  |  | Aggregate intrinsic value |
$16.47 - $19.93 |  |  | 147,162 |  |  | $ | 2.62 |  |  |  | 0.6 |  |  | $ | 36 |  |  |  | 19,375 |  |  | $ | 19.20 |  |  |  | 4.4 |  |  | $ | 8 |
$20.25 - $28.37 |  |  | 357,230 |  |  |  | 22.79 |  |  |  | 5.5 |  |  |  | - |  |  |  | 116,692 |  |  |  | 23.53 |  |  |  | 5.3 |  |  |  | - |
$30.70 - $30.74 |  |  | 5,000 |  |  |  | 30.74 |  |  |  | 4.2 |  |  |  | - |  |  |  | 2,500 |  |  |  | 30.74 |  |  |  | 4.2 |  |  |  | - |
$40.04 - $48.00 |  |  | 129,340 |  |  |  | 42.00 |  |  |  | 3.7 |  |  |  | - |  |  |  | 96,108 |  |  |  | 42.02 |  |  |  | 3.7 |  |  |  | - |
$51.82 - $59.98 |  |  | 13,350 |  |  |  | 55.53 |  |  |  | 1.3 |  |  |  | - |  |  |  | 13,350 |  |  |  | 55.53 |  |  |  | 1.3 |  |  |  | - |
$60.01 - $68.41 |  |  | 146,066 |  |  |  | 60.93 |  |  |  | 1.2 |  |  |  | - |  |  |  | 144,896 |  |  |  | 60.94 |  |  |  | 1.2 |  |  |  | - |
$70.13 - $79.51 |  |  | 144,323 |  |  |  | 78.48 |  |  |  | 2.1 |  |  |  | - |  |  |  | 135,347 |  |  |  | 78.70 |  |  |  | 2.2 |  |  |  | - |
$80.61 - $82.07 |  |  | 9,000 |  |  |  | 80.61 |  |  |  | 3.0 |  |  |  | - |  |  |  | 6,750 |  |  |  | 80.61 |  |  |  | 3.0 |  |  |  | - |
|  |  | 951,471 |  |  | $ | 37.63 |  |  |  | 3.2 |  |  | $ | 36 |  |  |  | 535,018 |  |  | $ | 52.34 |  |  |  | 3.0 |  |  | $ | 8 |
|  | Options outstanding |  |  | Options exercisable |
Exercise price |  | Number outstanding |  |  | Weighted average exercise price per share |  |  | Weighted average remaining contractual life (years) |  |  | Aggregate intrinsic value |  |  | Number exercisable |  |  | Weighted average exercise price per share |  |  | Weighted average remaining contractual life (years) |  |  | Aggregate intrinsic value |
$0 - $1.81 |  |  | 15,659,826 |  |  | $ | 1.34 |  |  |  | 4.1 |  |  | $ | 7,434 |  |  |  | 13,032,265 |  |  | $ | 1.28 |  |  |  | 4.1 |  |  | $ | 6,866 |
|  |  | 15,659,826 |  |  | $ | 1.34 |  |  |  | 4.1 |  |  | $ | 7,434 |  |  |  | 13,032,265 |  |  | $ | 1.28 |  |  |  | 4.1 |  |  | $ | 6,866 |
|  | Options outstanding |  |  | Options exercisable |
Exercise price |  | Number outstanding |  |  | Weighted average exercise price per share |  |  | Weighted average remaining contractual life (years) |  |  | Aggregate intrinsic value |  |  | Number exercisable |  |  | Weighted average exercise price per share |  |  | Weighted average remaining contractual life (years) |  |  | Aggregate intrinsic value |
$0 - $6.00 |  |  | 4,710,674 |  |  | $ | 6.00 |  |  |  | 4.5 |  |  | $ | - |  |  |  | 4,141,928 |  |  | $ | 6.00 |  |  |  | 4.5 |  |  | $ | - |
|  |  | 4,710,674 |  |  | $ | 6.00 |  |  |  | 4.5 |  |  | $ | - |  |  |  | 4,141,928 |  |  | $ | 6.00 |  |  |  | 4.5 |  |  | $ | - |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Company options |  | $ | 985 |  |  | $ | 1,429 |  |  | $ | 3,035 |  |  | $ | 4,104 |
Wavelo options |  |  | 427 |  |  |  | 422 |  |  |  | 1,322 |  |  |  | 1,380 |
Ting options |  |  | 30 |  |  |  | 32 |  |  |  | 91 |  |  |  | 144 |
Capitalized stock based compensation |  |  | (55 | ) |  |  | (75 | ) |  |  | (171 | ) |  |  | (245 | )
Total stock based compensation expense |  | $ | 1,387 |  |  | $ | 1,808 |  |  | $ | 4,277 |  |  | $ | 5,383 |

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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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- 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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