Note 5 - Accumulated Other Comprehensive Loss - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Balance		$ 43,956	$ 44,602	$ 43,714	$ 44,841
Balance		43,569	43,650	43,569	43,650
AOCI Attributable to Parent [Member]
Balance		(1,891)	(1,642)	(1,748)	(1,728)
Foreign currency translation adjustments (1)	[1]	5	(48)	(138)	38
Balance		$ (1,886)	$ (1,690)	$ (1,886)	$ (1,690)

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