Note 8 - Income Taxes (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Deferred Tax Assets, Net of Valuation Allowance	$ 17,667	$ 18,666
Deferred Tax Liabilities, Net	2,604	552
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	81,200
Unrecognized Tax Benefits	0	0	$ 1,400
Other Noncurrent Assets [Member]
Deferred Tax Assets, Net of Valuation Allowance	900	1,600
Other Noncurrent Liabilities [Member]
Deferred Tax Liabilities, Net	$ 3,500	$ 2,100