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v3.25.2

Note 4 - Fair-value Measurements (Details Textual) $ in Millions | Jun. 30, 2025 USD ($) | Dec. 31, 2024 USD ($)
--- | --- | ---
Measurement Input, Price Volatility [Member] |  |
Share-settled Liability, Measurement Input | 1.37 |
Measurement Input, Share Price [Member] |  |
Share-settled Liability, Measurement Input | 2.5 |
Measurement Input, Conversion Price [Member] |  |
Share-settled Liability, Measurement Input | 6.18 |
Demand Deposits [Member] |  |
Restricted Cash, Current | $ 1.9 | $ 3.4

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- Definition Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-8 + Details
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