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Note 11 - Capital Stock (Details Textual) |  | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
May 09, 2024 USD ($) $ / shares shares | Jun. 30, 2024 USD ($) $ / shares shares | Jun. 30, 2023 USD ($) | Dec. 31, 2023 USD ($) $ / shares shares | Dec. 08, 2022 USD ($) | Apr. 25, 2022 $ / shares shares
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  |  |  |  | $ 0.001
Offering of Debt Securities and Warrants, Maximum (in shares) |  |  |  |  |  | 500,000,000
Maximum Shares of Common Stock Registered by Certain Selling Shareholders (in shares) |  |  |  |  |  | 8,297,093
Proceeds from Issuance of Common Stock | $ |  | $ 0 | $ 37,526,663 |  |  |
Class of Warrant or Right, Outstanding (in shares) |  | 53,562 |  | 105,556 |  |
Payments for Repurchase of Equity | $ |  | $ 16,761,371 | $ (0) |  |  |
Separation Agreement [Member] |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares | $ 0.0001 |  |  |  |  |
Securities Repurchase Agreement, Consideration Transferred | $ | $ 9,175,605 |  |  |  |  |
Payments for Repurchase of Equity | $ | $ 8,800,480 |  |  |  |  |
Stock Issued During Period, Shares, Repurchase of Equity (in shares) | 36,705 |  |  |  |  |
Deferred Compensation Arrangement with Individual, Shares Issued (in shares) | 200,000 |  |  |  |  |
Severance Costs | $ | $ 960,000 |  |  |  |  |
Deferred Compensation Arrangement with Individual, Recorded Liability | $ | 75,000 |  |  |  |  |
Compensation Expense, Excluding Cost of Good and Service Sold | $ | 250,000 |  |  |  |  |
Separation Agreement [Member] | Boulderado [Member] |  |  |  |  |  |
Securities Repurchase Agreement, Consideration Transferred | $ | 9,951,113 |  |  |  |  |
Payments for Repurchase of Equity | $ | $ 7,960,891 |  |  |  |  |
Warrants for Common Class B Stock [Member] |  |  |  |  |  |
Class of Warrant or Right, Outstanding (in shares) |  | 52,778 |  |  |  |
Warrants for Common Class B Stock [Member] | Separation Agreement [Member] |  |  |  |  |  |
Class of Warrant or Right, Repurchased During the Period (in shares) | 51,994 |  |  |  |  |
Warrants for Common Class A Stock [Member] |  |  |  |  |  |
Class of Warrant or Right, Outstanding (in shares) |  | 784 |  |  |  |
Common Class A [Member] |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  | $ 0.001 |  | $ 0.001 |  |
Common Class A [Member] | Separation Agreement [Member] |  |  |  |  |  |
Stock Repurchased During Period, Shares (in shares) | 210,000 |  |  |  |  |
Common Class B [Member] |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  | $ 0.001 |  | $ 0.001 |  |
Common Stock, Voting Rights Per Share |  | 10 |  |  |  |
Common Class B [Member] | Separation Agreement [Member] |  |  |  |  |  |
Stock Repurchased During Period, Shares (in shares) | 527,780 |  |  |  |  |
Sky Harbour Group Corporation Class A Common Stock [Member] | Separation Agreement [Member] | Boulderado [Member] |  |  |  |  |  |
Securities Repurchase Agreement, Equity Issued (in shares) | 194,738 |  |  |  |  |
At The Market Offering [Member] | Common Class A [Member] |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  |  | 1,532,065 |  |
Proceeds from Issuance of Common Stock | $ |  |  |  | $ 37,526,663 |  |
Commission, Percent of Gross Sales Price Per Share |  |  |  | 3.00% |  |
At The Market Offering [Member] | Common Class A [Member] | Maximum [Member] |  |  |  |  |  |
Equity Offering Program, Aggregate Share Price | $ |  | $ 100,000,000 |  |  | $ 100,000,000 |

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