Note 5 - Income Taxes - Components of Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Current taxes
Federal	$ 5,801	$ 7,446	$ 7,352
State	515	856	841
Total current taxes	6,316	8,302	8,193
Deferred taxes
Federal	(317)	279	(135)
State	(28)	32	(16)
Total deferred taxes	(345)	311	(151)
Total provision for income taxes	$ 5,971	$ 8,613	$ 8,042

Amount of current federal tax expense (benefit) attributable to income (loss) from continuing operations. Includes, but is not limited to, current national tax expense (benefit) for non-US (United States of America) jurisdiction.

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