Note 9 - Accumulated Other Comprehensive Loss (Details Textual) - USD ($)	Mar. 31, 2024	Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (1,431,000)	$ (1,437,000)	[1]

[1] The condensed consolidated balance sheet as of December 31, 2023, has been prepared using information from the audited consolidated balance sheet as of that date.