Note 14 - Variable Interest Entities - Carrying Value of Variable Interests in Non-consolidated Variable Interest Entities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Other Investments, Fair Value Disclosure	$ 59,533	$ 72,217
Investments in equity method affiliates	43,281	14,241
Variable Interest Entity, Not Primary Beneficiary [Member]
Other Investments, Fair Value Disclosure	12,584	10,554
Investments in equity method affiliates	37,533	3,376
Maximum exposure	$ 50,117	$ 13,930