Note 19 - Fair Value Measurements - Financial Assets and Liabilities Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Equity Method - fair value option	$ 9,786	$ 21,120
Business Combination, Contingent Consideration, Liability		1,000	$ 2,800
Fair Value, Recurring [Member]
Money market funds	32,404	102,773
Equity securities	116	648
Equity Method - fair value option	9,786	21,120
Common stock options/warrants	2	28
Total assets	42,308	124,569
Forward contracts	29	1,123
Total liabilities	29	2,159
Business Combination, Contingent Consideration, Liability		1,036
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Money market funds	32,404	102,773
Equity securities	116	648
Equity Method - fair value option	9,786	21,120
Common stock options/warrants	0	0
Total assets	42,306	124,541
Forward contracts	0	0
Total liabilities	0	0
Business Combination, Contingent Consideration, Liability		0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Money market funds	0	0
Equity securities	0	0
Equity Method - fair value option	0	0
Common stock options/warrants	2	28
Total assets	2	28
Forward contracts	29	1,123
Total liabilities	29	1,123
Business Combination, Contingent Consideration, Liability		0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Money market funds	0	0
Equity securities	0	0
Equity Method - fair value option	0	0
Common stock options/warrants	0	0
Total assets	0	0
Forward contracts	0	0
Total liabilities	$ 0	1,036
Business Combination, Contingent Consideration, Liability		$ 1,036