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Note 2 - Fair Value Measurements - Summary of Fair Value Measurement Inputs and Valuation Techniques (Details) | Mar. 31, 2025
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Measurement Input, Expected Term [Member] | Valuation Technique, Binomial Pricing Model [Member] | The 2025 Note [Member] |
Debt, measurement input | 0.7
Measurement Input, Price Volatility [Member] | Valuation Technique, Binomial Pricing Model [Member] | The 2025 Note [Member] |
Debt, measurement input | 1.90
Measurement Input, Risk Free Interest Rate [Member] | Valuation Technique, Binomial Pricing Model [Member] | The 2025 Note [Member] |
Debt, measurement input | 0.041
Measurement Input, Expected Dividend Rate [Member] | Valuation Technique, Binomial Pricing Model [Member] | The 2025 Note [Member] |
Debt, measurement input | 0
Measurement Input, Credit Spread [Member] | Valuation Technique, Binomial Pricing Model [Member] | The 2025 Note [Member] |
Debt, measurement input | 0.359
Warrant Liability [Member] | Measurement Input, Expected Term [Member] | Valuation Technique, Black-Scholes-Merton Model [Member] |
Derivative Liability, Measurement Input | 4
Warrant Liability [Member] | Measurement Input, Price Volatility [Member] | Valuation Technique, Black-Scholes-Merton Model [Member] |
Derivative Liability, Measurement Input | 1.90
Warrant Liability [Member] | Measurement Input, Risk Free Interest Rate [Member] | Valuation Technique, Black-Scholes-Merton Model [Member] |
Derivative Liability, Measurement Input | 0.037
Warrant Liability [Member] | Measurement Input, Expected Dividend Rate [Member] | Valuation Technique, Black-Scholes-Merton Model [Member] |
Derivative Liability, Measurement Input | 0
Warrant Liability [Member] | Measurement Input, Exercise Price [Member] | Valuation Technique, Black-Scholes-Merton Model [Member] |
Derivative Liability, Measurement Input | 2.22

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- Definition Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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