Note 5 - Accumulated Other Comprehensive Loss - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Balance		$ 44,841	$ 46,200
Balance		44,602	45,133
AOCI Attributable to Parent [Member]
Balance		(1,728)	(1,604)
Foreign currency translation adjustments (1)	[1]	86	(70)
Balance		$ (1,642)	$ (1,674)

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