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Note 18 - Subsequent Events (Details Textual) - USD ($)		3 Months Ended
	Oct. 25, 2024	Jun. 30, 2023	Mar. 31, 2023	Dec. 20, 2024	Oct. 31, 2024	Nov. 29, 2023
Stock Issued During Period, Value, New Issues		$ 9,421,202	$ 28,105,461
Sky Harbour Group Corporation [Member] | Additional PIPE Offering [Member]
Equity Offering, Maximum Shares (in shares)						2,307,692
Equity Offering, Maximum Amount						$ 15,000,000
Sky Harbour Group Corporation [Member] | Additional PIPE Offering [Member] | Forecast [Member]
Equity Offering, Maximum Shares (in shares)				3,955,790
Equity Offering, Maximum Amount				$ 37,580,005
Subsequent Event [Member] | Sky Harbour Group Corporation [Member] | Additional PIPE Offering [Member]
Stock Issued During Period, Shares, New Issues (in shares)	3,955,790
Stock Issued During Period, Value, New Issues	$ 37,580,005
First National Bank of Omaha [Member] | Credit Facility [Member] | Subsequent Event [Member]
Debt Instrument, Face Amount					$ 3,500,000

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