Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) $ in Thousands	3 Months Ended
Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Operating Expenses	$ 5,791	$ 5,973
Income Tax Expense (Benefit)	$ 0	$ 0
Effective Income Tax Rate Reconciliation, Percent	0.00%	0.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%
Customer Concentration Risk [Member] \| Revenue Benchmark [Member]
Number of Major Tenants	3	2
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Three Tenants [Member]
Concentration Risk, Percentage	45.00%
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| One Tenant [Member]
Concentration Risk, Percentage	20.00%
Number of Major Tenants	1
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Two Tenants [Member]
Concentration Risk, Percentage		90.00%
Prepaid Expenses and Other Assets [Member]
Deferred Rent Asset, Net, Current	$ 120		$ 83
Consolidated Subsidiaries [Member] \| Sky Harbour LLC [Member]
Subsidiary, Ownership Percentage, Parent	100.00%
Reclassification of Expenses [Member]
Operating Expenses	$ 89

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of excess of rental income recognized over rental payment required by lease, classified as current.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

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