Note 11 - 401(k) Savings Plan (Details Textual) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Defined Contribution Plan, Cost	$ 1.4	$ 1.4
First 3% of Each Participant's Contributions [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	100.00%
Second Two Percent Of Each Participants Contributions [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	50.00%