Note 9 - Warrants (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Oct. 26, 2020
Fair Value Adjustment of Warrants	$ (2,613)	$ (15,390)	$ 1,597	$ (1,452)
Public Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)						6,799,439
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)						$ 11.50
Private Placement Warrant [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)						7,719,779
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)					$ 11.50	$ 11.50
Class of Warrant or Right, Outstanding (in shares)	6,798,964		6,798,964		7,719,779
Class of Warrants and Rights Outsanding, Price (in dollars per share)	$ 0.31		$ 0.31		$ 0.20
Warrants and Rights Outstanding	$ 4,500		$ 4,500		$ 2,900
Fair Value Adjustment of Warrants	$ 2,600	$ 15,400	$ (1,600)	$ 1,500