| Note 10 - Shareholders' Equity (Tables) | 3 Months Ended | |||||||||||||||||||||||||||||||||||
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| Mar. 31, 2025 | ||||||||||||||||||||||||||||||||||||
| Notes Tables | ||||||||||||||||||||||||||||||||||||
| Common Stock Reserved for Future Issuance [Table Text Block] | 
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| X | ||||||||||
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- Definition A tabular disclosure of common stock reserved for future issuance. No definition available. 
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| X | ||||||||||
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- References No definition available. 
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