Note 12 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Proceeds from Issuance of Common Stock	$ 18,113	$ 0
At The Market [Member]
Stock Issued During Period, Shares, New Issues	9,790,577
Shares Issued, Price Per Share	$ 1.85
Proceeds from Issuance of Common Stock	$ 18,100
Proceeds from Issuance of Common Stock, Net	$ 17,600