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Note 13 - Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2024
Notes Tables |
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
|  | Year ended |  |  |  |  |  |  |
|  | December 31, |  |  | December 31, |  |  | December 31, |
|  | 2024 |  |  | 2023 |  |  | 2022 |
Current: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  | $ | 24 |  |  | $ | 61 |  |  | $ | — |
State |  |  | (9 | ) |  |  | 186 |  |  |  | — |
Total current expense |  |  | 15 |  |  |  | 247 |  |  |  | — |
Deferred: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  | (223 | ) |  |  | (85 | ) |  |  | 2,272 |
State |  |  | 1,150 |  |  |  | (31 | ) |  |  | 812 |
Change in valuation allowance |  |  | (927 | ) |  |  | 116 |  |  |  | (3,084 | )
Total deferred expense |  |  | — |  |  |  | — |  |  |  | — |
Total provision |  | $ | 15 |  |  | $ | 247 |  |  | $ | — |
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
|  | December 31, |  |  | December 31, |
|  | 2024 |  |  | 2023 |
Deferred tax assets: |  |  |  |  |  |  |  |
Net operating loss carryforwards |  | $ | 14,145 |  |  | $ | 15,447 |
Stock-based compensation |  |  | 2,021 |  |  |  | 3,372 |
Accruals and other |  |  | 4,827 |  |  |  | 2,866 |
Total deferred tax assets |  |  | 20,993 |  |  |  | 21,685 |
Valuation allowance |  |  | (20,589 | ) |  |  | (21,516 | )
Deferred tax assets |  | $ | 404 |  |  | $ | 169 |
Deferred tax liabilities: |  |  |  |  |  |  |  |
Deferred consideration discount |  | $ | (182 | ) |  | $ | — |
Right-of-use assets |  |  | (45 | ) |  |  | (27 | )
Other deferred tax liabilities |  |  | (177 | ) |  |  | (142 | )
Deferred tax liabilities |  | $ | (404 | ) |  | $ | (169 | )
Net deferred tax assets (liabilities) |  | $ | — |  |  | $ | — |
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
|  | Year ended |
|  | December 31, |  |  | December 31, |  |  | December 31, |
|  | 2024 |  |  | 2023 |  |  | 2022 |
Benefit based on federal statutory rate |  | $ | (800 | ) |  | $ | (145 | ) |  | $ | (1,894 | )
Stock-based compensation |  |  | 880 |  |  |  | 254 |  |  |  | 24 |
Change in state tax rate |  |  | 814 |  |  |  | - |  |  |  | - |
Warrants |  |  | - |  |  |  | - |  |  |  | (476 | )
State income tax, net of federal tax benefit |  |  | (31 | ) |  |  | (45 | ) |  |  | (785 | )
Section 162(m) limitation |  |  | 169 |  |  |  | - |  |  |  | - |
Other permanent differences |  |  | 18 |  |  |  | 299 |  |  |  | 47 |
Research and development credits |  |  | (277 | ) |  |  | - |  |  |  | - |
Change in uncertain tax position reserve |  |  | 382 |  |  |  | - |  |  |  | - |
Return to provision |  |  | (213 | ) |  |  | - |  |  |  | - |
Change in valuation allowance |  |  | (927 | ) |  |  | (116 | ) |  |  | 3,084 |
Income tax expense |  | $ | 15 |  |  | $ | 247 |  |  | $ | — |
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] |
|  | Year ended |
|  | December 31, |  |  | December 31, |  |  | December 31, |
|  | 2024 |  |  | 2023 |  |  | 2022 |
Beginning balance |  | $ | — |  |  | $ | — |  |  | $ | — |
Gross increases (decreases) related to prior year positions |  |  | 243 |  |  |  | - |  |  |  | - |
Gross increases (decreases) related to current year positions |  |  | 139 |  |  |  | - |  |  |  | - |
Decreases related to settlements with taxing authorities |  |  | - |  |  |  | - |  |  |  | - |
Reductions related to statute of limitation expirations |  |  | - |  |  |  | - |  |  |  | - |
Ending balance |  | $ | 382 |  |  | $ | — |  |  | $ | — |

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