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Note 10 - Equity (Details Textual) - shares
Mar. 31, 2025
Dec. 31, 2024
Sky Harbour LLC [Member]    
Subsidiary, Ownership Percentage, Parent 44.60%  
Sky Harbour LLC [Member] | LLC Interests and TRA Holders [Member]    
Subsidiary, Ownership Percentage, Parent 55.40%  
Common Class A [Member]    
Common Stock, Shares, Outstanding (in shares) 33,793,886 33,456,227
Common Class B [Member]    
Common Stock, Shares, Outstanding (in shares) 42,046,356 42,046,356