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v3.24.3

Note 11 - Capital Stock (Details Textual) |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jul. 23, 2024 USD ($) | May 09, 2024 USD ($) $ / shares shares | Sep. 30, 2024 USD ($) $ / shares shares | Sep. 30, 2024 USD ($) $ / shares shares | Sep. 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) | shares |  |  |  |  |  |  |  | 500,000,000
Maximum Shares of Common Stock Registered by Certain Selling Shareholders (in shares) | shares |  |  |  |  |  |  |  | 8,297,093
Proceeds from Issuance of Common Stock |  |  |  | $ 0 | $ 37,526,663 |  |  |
Treasury Stock, Value, Acquired, Cost Method |  |  | $ 1,380,180 |  |  |  |  |
Class of Warrant or Right, Outstanding (in shares) | shares |  |  | 53,562 | 53,562 |  | 105,556 |  |
Payments for Repurchase of Equity |  |  |  | $ 18,141,551 | $ (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) | shares |  | 36,705 |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Shares Issued (in shares) | 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) | shares |  |  | 52,778 | 52,778 |  |  |  |
Warrants for Common Class B Stock [Member] | Separation Agreement [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right, Repurchased During the Period (in shares) | shares |  | 51,994 |  |  |  |  |  |
Warrants for Common Class A Stock [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right, Outstanding (in shares) | shares |  |  | 784 | 784 |  |  |  |
Common Class A [Member] |  |  |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  | $ 1 | $ 1 |  | $ 1 |  |
Common Class A [Member] | Separation Agreement [Member] |  |  |  |  |  |  |  |
Stock Repurchased During Period, Shares (in shares) | shares |  | 210,000 |  |  |  |  |  |
Common Class B [Member] |  |  |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  | $ 0.001 | $ 0.001 |  | $ 0.001 |  |
Common Stock, Voting Rights Per Share |  |  | 10 | 10 |  |  |  |
Common Class B [Member] | Separation Agreement [Member] |  |  |  |  |  |  |  |
Stock Repurchased During Period, Shares (in shares) | shares |  | 527,780 |  |  |  |  |  |
Sky Harbour Group Corporation Class A Common Stock [Member] | Separation Agreement [Member] | Boulderado [Member] |  |  |  |  |  |  |  |
Securities Repurchase Agreement, Equity Issued (in shares) | shares |  | 194,738 |  |  |  |  |  |
At The Market Offering [Member] | Common Class A [Member] |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | 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 |  |  | $ 100,000,000 |
Share Repurchase Program [Member] | Common Class A [Member] |  |  |  |  |  |  |  |
Share Repurchase Program, Authorized, Amount | $ 20,000,000 |  |  |  |  |  |  |
Share Repurchase Program, Authorized, Percentage of Outstanding Shares | 25.00% |  |  |  |  |  |  |
Treasury Stock, Shares, Acquired (in shares) | shares |  |  | 97,262 |  |  |  |  |
Treasury Stock, Value, Acquired, Cost Method |  |  | $ 1,380,180 |  |  |  |  |

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