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Note 11 - Stock-based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2024
Notes Tables |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  | Options Outstanding
|  | Number of Options(*) |  |  | Weighted- Average Exercise Price |  |  | Weighted- Average Remaining Contractual Life (years) |
Balance—January 1, 2024 |  |  | 16,365 |  |  | $ | 110.51 |  |  |  | 5.00 |
Options granted |  |  | — |  |  | $ | — |  |  |  | — |
Options exercised |  |  | — |  |  | $ | — |  |  |  | — |
Options canceled |  |  | (3,314 | ) |  | $ | 114.02 |  |  |  | — |
Balance—December 31, 2024 |  |  | 13,051 |  |  | $ | 109.62 |  |  |  | 4.00 |
Exercisable as of December 31, 2024 |  |  | 13,051 |  |  | $ | 109.62 |  |  |  | 4.00 |
Vested and expected to vest as of December 31, 2024 |  |  | 13,051 |  |  | $ | 109.62 |  |  |  | 4.00 |
Nonvested Restricted Stock Shares Activity [Table Text Block] |
Restricted Stock Awards |  | Shares(*) |  |  | Weighted Average Grant- Date Fair Value |
Nonvested at January 1, 2024 |  |  | 840,815 |  |  | $ | 9.73 |
Granted |  |  | 1,395,974 |  |  | $ | 2.45 |
Vested |  |  | (593,541 | ) |  | $ | 9.24 |
Forfeited |  |  | (332,259 | ) |  | $ | 4.88 |
Nonvested at December 31, 2024 |  |  | 1,310,989 |  |  | $ | 3.43 |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | December 31, |  |  | December 31, |
|  | 2023 |  |  | 2024 |
|  | (in thousands) |
Sales and distribution expenses |  | $ | 2,439 |  |  | $ | 1,783 |
Research and development expenses |  |  | 1,414 |  |  |  | — |
General and administrative expenses |  |  | 4,483 |  |  |  | 5,727 |
Total stock-based compensation expense |  | $ | 8,336 |  |  | $ | 7,510 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Subparagraph (c) -Paragraph 2 -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 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 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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