Note 7 - Income Taxes - Income Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
U.S. Operations	$ 40,031	$ 43,156	$ 48,145
Foreign Operations	(69)	(341)	476
Income before income taxes	$ 39,962	$ 42,815	$ 48,621

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details