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Note 11 - Share-based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2024
Notes Tables |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  |  |  |  |  | Weighted Average |  |  |  |  |
|  | Options on Common Shares |  |  | Exercise Price |  |  | Remaining Contractual Term |  |  | Aggregate Intrinsic Value |
Outstanding January 1, 2024 |  |  | 4,657,635 |  |  | $ | 2.52 |  |  |  | 8.75 |  |  | $ | 3,979 |
Granted |  |  | 735,000 |  |  | $ | 2.90 |  |  |  | - |  |  |  | - |
Exercised |  |  | (232,081 | ) |  | $ | 2.53 |  |  |  | - |  |  |  | - |
Forfeited, cancelled, expired |  |  | (1,359,495 | ) |  | $ | 3.01 |  |  |  | - |  |  |  | - |
Outstanding June 30, 2024 |  |  | 3,801,059 |  |  | $ | 2.43 |  |  |  | 8.13 |  |  | $ | 1,195- |
Exercisable June 30, 2024 |  |  | 1,019,9810 |  |  | $ | 4.09 |  |  |  | 4.81 |  |  | $ | 20 |
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | For the Six Months |
|  | Ended June 30, |
|  | 2024 |  |  | 2023 |
Expected stock price volatility |  |  | 76 | % |  |  | 49 | %
Risk-free interest rate |  |  | 3.97 | % |  |  | 3.64 | %
Expected dividend yield |  |  | 0 | % |  |  | 0 | %
Expected life of options |  |  | 6.00 |  |  |  | 6.66 |
Weighted-average fair value of options granted |  | $ | 2.90 |  |  | $ | 0.55 |
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] |
|  | Service-Based RSU's |  |  | Weighted Average Grant Date Fair Value |  |  | Weighted Average Vesting Period (Years) |
Unvested at January 1, 2024 |  |  | 810,588 |  |  | $ | 1.73 |  |  |  | 2.52 |
Granted - service based |  |  | 739,836 |  |  | $ | 2.77 |  |  |  | - |
Vested |  |  | (159,805 | ) |  | $ | 2.85 |  |  |  | - |
Forfeited and cancelled |  |  | (237,727 | ) |  | $ | 2.26 |  |  |  | - |
Unvested at June 30, 2024 |  |  | 1,152,892 |  |  | $ | 2.15 |  |  |  | 5.19 |
Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block] |
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
Selling, general and administrative |  | $ | 208 |  |  | $ | 990 |  |  | $ | 856 |  |  | $ | 1,552 |
Research and development |  |  | 34 |  |  |  | 231 |  |  |  | 62 |  |  |  | 297 |
Total share-based expense |  | $ | 242 |  |  | $ | 1,221 |  |  | $ | 918 |  |  | $ | 1,849 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + 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)(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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- 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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