Note 3 - Fair Value Measurements - Summary of Fair Value of Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Derivative liabilities (Note 10)	$ 2	$ 59	$ 6,521	$ 11,774	$ 40,443	$ 0
Fair Value, Recurring [Member]
Marketable securities (Note 5)	5,868
Contingent consideration liability (Note 6)	5,758
Derivative liabilities (Note 10)	2
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]
Marketable securities (Note 5)	4,280
Contingent consideration liability (Note 6)	0
Derivative liabilities (Note 10)	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]
Marketable securities (Note 5)	0
Contingent consideration liability (Note 6)	0
Derivative liabilities (Note 10)	2
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member]
Marketable securities (Note 5)	0
Contingent consideration liability (Note 6)	5,758
Derivative liabilities (Note 10)	0
Fair Value Measured at Net Asset Value Per Share [Member] | Fair Value, Recurring [Member]
Marketable securities (Note 5)	1,588
Contingent consideration liability (Note 6)	0
Derivative liabilities (Note 10)	$ 0