Note 11 - Earn-Out and Warrant Liabilities (Details Textual) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		9 Months Ended
	Jul. 26, 2021	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Jul. 01, 2021
Number of Shares Exchangeable at $12.50 (in shares)	1,000,000
Number of Shares Exchangeable at $15.00 (in shares)	1,000,000
Number of Shares Exchangeable at $17.50 (in shares)	1,000,000
Business Combination, Contingent Consideration, Liability, Total		$ 13.8		$ 13.8		$ 6.6	$ 29.6
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability		2.8	$ 0.8	6.8	$ 6.6
Private Placement Warrant [Member]
Class of Warrant or Right, Outstanding (in shares)							405,000
Warrants and Rights Outstanding, Term (Year)							5 years
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)							$ 11.5
Warrants and Rights Outstanding		0.4		0.4		$ 0.2	$ 1.4
Fair Value Adjustment of Warrants		$ 0.1	$ 0.1	$ 0.2	$ 0.2