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Note 18 - Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2025
Notes Tables |
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] |
|  | Year ended December 31, |
|  | 2025 |  |  | 2024 |
Domestic |  | $ | (6,246 | ) |  | $ | (4,286 | )
Foreign |  |  | (31 | ) |  |  | 4,312 |
Total |  | $ | (6,277 | ) |  | $ | 26 |
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
|  | Year ended December 31, |
|  | 2025 |  |  | 2024 |
Current: |  |  |  |  |  |  |  |
Federal |  | $ | 0 |  |  | $ | 0 |
State |  |  | 9 |  |  |  | 9 |
Foreign |  |  | (53 | ) |  |  | 1,465 |
Total current income tax expense |  |  | (44 | ) |  |  | 1,474 |
Deferred: |  |  |  |  |  |  |  |
Federal |  |  | 0 |  |  |  | 0 |
State |  |  | 0 |  |  |  | 0 |
Foreign |  |  | 105 |  |  |  | 232 |
Total deferred income tax expense |  |  | 105 |  |  |  | 232 |
Income tax expense, net |  | $ | 61 |  |  | $ | 1,706 |
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
|  | Year ended December 31, 2025 |
|  | Amount |  |  | Percent of Pre-tax Income |
Federal tax expense at the statutory rate |  | $ | (1,318 | ) |  |  | 21.0 | %
State income taxes, net of federal income tax effect |  |  | 9 |  |  |  | (0.2 | )
Foreign tax effects |  |  | 59 |  |  |  | (0.9 | )
Changes in valuation allowance |  |  | 1,223 |  |  |  | (19.5 | )
Other |  |  |  |  |  |  |  |
Return-to-provision adjustments |  |  | 118 |  |  |  | (1.9 | )
Other adjustments |  |  | (30 | ) |  |  | 0.5 |
Income tax expense (benefit), net |  | $ | 61 |  |  |  | (1.0 | )%
|  | Year ended December 31, |
|  | 2024 |
Federal tax expense at the statutory rate |  | $ | 5 |
Current year permanent differences |  |  | 326 |
State income taxes, net of federal income tax impact |  |  | (90 | )
Effect of tax rates of foreign subsidiary |  |  | 400 |
Return-to-provision adjustments |  |  | 150 |
Changes in valuation allowance |  |  | 915 |
Income tax expense (benefit), net |  | $ | 1,706 |
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
|  | Year ended December 31, |
|  | 2025 |  |  | 2024 |
Deferred tax assets: |  |  |  |  |  |  |  |
Compensation and benefit accruals |  | $ | 840 |  |  | $ | 554 |
Inventory valuation |  |  | 1,013 |  |  |  | 945 |
Federal and state net operating loss carryforwards |  |  | 37,098 |  |  |  | 36,463 |
Deferred revenue |  |  | 129 |  |  |  | 23 |
Interest limitation carryover |  |  | 1,261 |  |  |  | 873 |
Defined benefit pension plan |  |  | 0 |  |  |  | 21 |
Lease liabilities |  |  | 1,217 |  |  |  | 864 |
Foreign deferred revenue and other provisions |  |  | 2,188 |  |  |  | 2,047 |
Capitalized research and experimental costs |  |  | 211 |  |  |  | 201 |
Other |  |  | 314 |  |  |  | 350 |
Total |  |  | 44,271 |  |  |  | 42,341 |
Domestic valuation allowance |  |  | (39,905 | ) |  |  | (38,748 | )
Total deferred tax assets |  |  | 4,366 |  |  |  | 3,593 |
Deferred tax liabilities: |  |  |  |  |  |  |  |
Defined benefit pension plan |  |  | (124 | ) |  |  | 0 |
Prepaid and other assets |  |  | (936 | ) |  |  | (787 | )
Right-of-use assets, net |  |  | (1,118 | ) |  |  | (759 | )
Total deferred tax liabilities |  |  | (2,178 | ) |  |  | (1,546 | )
Net deferred tax asset |  | $ | 2,188 |  |  | $ | 2,047 |

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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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