Note 1 - Organization and Significant Accounting Policies - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023
Balance		$ 43,714	$ 44,841
Balance		41,955	43,714
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance		(1,748)	(1,728)
Foreign currency translation adjustments (1)	[1]	(167)	(20)
Balance		$ (1,915)	$ (1,748)

[1] In all periods presented, there were no tax impacts related to functional currency translation adjustments.