Note 7 - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Income Tax Expense (Benefit)	$ (2,447)	$ 1,892
Operating Loss Carryforwards	1,300
Deferred Tax Assets, Valuation Allowance	2,530	2,404
Unrecognized Tax Benefits, Ending Balance	0	$ 0
General Business Tax Credit Carryforward [Member]
Tax Credit Carryforward, Amount	3,400
Domestic Tax Jurisdiction [Member] | Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards	$ 8,800
Open Tax Year	2022 2023 2024
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	$ 5,100
Open Tax Year	2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Foreign Tax Jurisdiction [Member]
Deferred Tax Assets, Valuation Allowance	$ 0
Open Tax Year	2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Foreign Tax Jurisdiction [Member] | His Majesty's Revenue and Customs (HMRC) [Member]
Operating Loss Carryforwards	$ 10,100