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Note 9 - Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2024
Notes Tables |
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] |
|  | 2024 |  |  | 2023 |
United States |  | $ | (16,474,000 | ) |  | $ | (30,455,000 | )
Foreign |  |  | - |  |  |  | (188,000 | )
Loss from operations before income taxes |  | $ | (16,474,000 | ) |  | $ | (30,643,000 | )
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
|  | 2024 |  |  | 2023 |
Current: |  |  |  |  |  |  |  |
Federal taxes |  | $ | - |  |  | $ | - |
State taxes |  |  | - |  |  |  | - |
Foreign taxes |  |  | - |  |  |  | - |
Total current |  | $ | - |  |  | $ | - |
Deferred: |  |  |  |  |  |  |  |
Federal taxes |  | $ | 50,000 |  |  | $ | - |
State taxes |  |  | 111,000 |  |  |  | - |
Foreign taxes |  |  | - |  |  |  | (313,000 | )
Total deferred |  |  | 161,000 |  |  |  | (313,000 | )
Net provision for income taxes |  | $ | 161,000 |  |  | $ | (313,000 | )
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
|  | 2024 |  |  | 2023 |
Deferred tax assets: |  |  |  |  |  |  |  |
Net operating loss and credits |  | $ | 40,819,000 |  |  | $ | 35,453,000 |
Intangibles – definite lived |  |  | 2,791,000 |  |  |  | 1,899,000 |
Stock compensation |  |  | 1,856,000 |  |  |  | 1,776,000 |
Accrued liabilities |  |  | 171,000 |  |  |  | 1,133,000 |
State taxes |  |  | 3,000 |  |  |  | 12,000 |
Capitalized research and development costs |  |  | 2,923,000 |  |  |  | 2,659,000 |
Total deferred tax assets |  |  | 48,563,000 |  |  |  | 42,932,000 |
Valuation allowance |  |  | (48,351,000 | ) |  |  | (42,855,000 | )
Deferred tax liabilities: |  |  |  |  |  |  |  |
Fixed assets |  |  | (35,000 | ) |  |  | (69,000 | )
Intangibles – indefinite lived |  |  | (338,000 | ) |  |  | - |
Contract liabilities |  |  | - |  |  |  | (8,000 | )
Total deferred tax liabilities |  |  | (373,000 | ) |  |  | (77,000 | )
Total net deferred tax assets (liabilities), net of valuation allowance |  | $ | (161,000 | ) |  | $ | - |
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
|  | 2024 |  |  | 2023 |
Statutory federal– tax rate - (benefit) expense |  |  | 21 | % |  |  | 21 | %
State tax, net |  |  | 7 |  |  |  | 5 |
Non-deductible permanent items |  |  | (1 | ) |  |  | (2 | )
Change in tax rate |  |  | 3 | % |  |  | - |
Foreign taxes |  |  | - |  |  |  | 1 |
Other |  |  | 3 |  |  |  | (2 | )
Valuation allowance |  |  | (34 | ) |  |  | (22 | )
|  |  | (1 | )% |  |  | 1 | %

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-9 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + Details
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- Definition Tabular disclosure of income before income tax between domestic and foreign jurisdictions. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(1)(Note 1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 + Details
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