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Note 14 - Revenue (Tables) | 6 Months Ended
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Jun. 30, 2025
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Three months ended June 30, |  |  | Six months ended June 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Revenue by primary geographical market: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 5 |  |  | $ | 26 |  |  | $ | 5 |  |  | $ | 41 |
Europe |  |  | 1 |  |  |  | 6 |  |  |  | 65 |  |  |  | 11 |
Asia-Pacific |  |  | 16 |  |  |  | — |  |  |  | 16 |  |  |  | — |
Total |  | $ | 22 |  |  | $ | 32 |  |  | $ | 86 |  |  | $ | 52 |
Revenue by timing of recognition: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Recognized at a point in time |  | $ | 22 |  |  | $ | 6 |  |  | $ | 22 |  |  | $ | 26 |
Recognized over time |  |  | — |  |  |  | 26 |  |  |  | 64 |  |  |  | 26 |
Total |  | $ | 22 |  |  | $ | 32 |  |  | $ | 86 |  |  | $ | 52 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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