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Note 3 - Business Combination (Details Textual) - USD ($) $ in Thousands			3 Months Ended			6 Months Ended
	Mar. 09, 2026	Feb. 06, 2026	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Equity Method Investment, Change in Fair Value			$ 0		$ 0	$ (2,302)	$ 0
Goodwill			12,962			12,962		$ 0
FLYTE [Member]
Equity Method Investment, Change in Fair Value				$ (2,300)
Equity Method Investments, Fair Value Disclosure	$ 2,900	$ 5,200
FLYTE [Member]
Business Combination, Voting Equity Interest Acquired, Percentage	80.02%	19.98%
Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares (in shares)	5,778
Equity Method Investment, Change in Fair Value			300			2,900
Business Combination, Consideration Transferred	$ 14,753
Goodwill	$ 9,430		$ 12,962			12,962
Business Combination, Acquisition-Related Cost, Expense						$ 100
FLYTE [Member] \| Series D Preferred Stock [Member]
Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares (in shares)	5,778	5,250
Ponderosa Air [Member]
Business Combination, Voting Equity Interest Acquired, Percentage	100.00%