Note 9 - Warrants (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	2 Months Ended	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2022	Mar. 31, 2021	Jan. 25, 2022	Oct. 26, 2020
Fair Value Adjustment of Warrants		$ 13,938	$ 0
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
Class of Warrant or Right, Outstanding (in shares)	6,799,439	6,799,439
Class of Warrants and Rights Outsanding, Price (in dollars per share)	$ 1.51	$ 1.51		$ 0.55
Warrants and Rights Outstanding	$ 21,900	$ 21,900		$ 8,000
Fair Value Adjustment of Warrants	$ 13,900
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			$ 11.50
Class of Warrant or Right, Outstanding (in shares)	7,719,779	7,719,779