Note 7 - Income Taxes - Income Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S. Operations	$ 48,145	$ 41,357	$ 40,045
Foreign Operations	476	110	474
Income before income taxes	$ 48,621	$ 41,467	$ 40,519

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