Note 1 - Description of Business and Summary of Significant Accounting Policies - Summary of Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Net unrealized gain	$ 185	$ 90
Tax effect related to the unrealized gain	(48)	(23)
Accumulated other comprehensive income	$ 137	$ 67