Note 8 - Accrued Expenses - Activity and Liability Balances Related to Restructuring Costs (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Liability, beginning balance	$ 6,796
New charges	3,508
Cash payment and other settlements	(917)
Liability, ending balance	9,387
Employee Severance [Member]
Liability, beginning balance	3,390
New charges	2,657
Cash payment and other settlements	(917)
Liability, ending balance	5,130
Other Restructuring [Member]
Liability, beginning balance	3,406
New charges	851
Cash payment and other settlements	0
Liability, ending balance	$ 4,257