Note 5 - Accumulated Other Comprehensive Loss - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Balance		$ 43,569	$ 43,650	$ 43,714	$ 44,841
Balance		43,864	44,088	43,864	44,088
AOCI Attributable to Parent [Member]
Balance		(1,886)	(1,690)	(1,748)	(1,728)
Foreign currency translation adjustments (1)	[1]	106	(122)	(32)	(84)
Balance		$ (1,780)	$ (1,812)	$ (1,780)	$ (1,812)

[1] In all periods presented, there were no tax impacts related to rate changes and no amounts were reclassified to earnings.