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Note 19 - Fair Value Measurements - Significant Unobservable Inputs on Fair Value (Details) | Jun. 13, 2022 | Dec. 31, 2021
--- | --- | ---
Measurement Input, Discount for Lack of Marketability [Member] |  |
Derivative Measurement Input | 0.10 | 0.10
Measurement Input, Price Volatility [Member] |  |
Derivative Measurement Input | 0.85 | 0.85
Weighted Average Cost of Capital [Member] |  |
Derivative Measurement Input | 0.171 | 0.145
Probability of Achieving Contingent Target [Member] |  |
Derivative Measurement Input | 1 | 0.90

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