Note 14 - Financial Instruments - Schedule of the Fair Value of Available-for-sale Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Available for sale securities, amortized cost	$ 176,780	$ 171,815
Available for sale securities, fair value	176,739	171,841
Available for sale securities, gross unrealized gains (losses)	(41)	26
US Treasury Securities [Member]
Available for sale securities, amortized cost	176,780	171,815
Available for sale securities, fair value	176,739	171,841
Available for sale securities, gross unrealized gains (losses)	$ (41)	$ 26