Note 1 - Principles of Consolidation and Basis of Presentation (Details Textual) $ in Millions	Jul. 25, 2020	Sep. 30, 2024 USD ($)	Mar. 31, 2024 shares	Dec. 31, 2023 shares	May 16, 2023 shares	Dec. 31, 2022 shares
Restricted Cash | $		$ 4.1
Stock Split From [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	3
Stock Split To [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	2
Common Class A [Member]
Common Stock, Shares Authorized			105,000,000	105,000,000	105,000,000	60,000,000
Common Class B [Member]
Common Stock, Shares Authorized			35,000,000	35,000,000	35,000,000	20,000,000