Note 9 - Fair Value Measurement - Details of Fair Value Adjustment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized gain (loss) on equity securities investments	Change in fair value of derivative contracts designated as hedge transactions	Change in fair value of derivative contracts designated as hedge transactions	Change in fair value of derivative contracts designated as hedge transactions	Change in fair value of derivative contracts designated as hedge transactions
Total fair value adjustments, net	$ 3,654	$ (6,397)	$ 6,804	$ (5,774)
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized gain (loss) on equity securities investments	3,260	(4,237)	8,895	(7,622)
Derivative [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) on derivative contracts	$ 394	$ (2,160)	$ (2,091)	$ 1,848