Note 7 - Income Taxes: Schedule of Provision for Income Tax Expense (Benefit) (Details) - USD ($)	3 Months Ended	9 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Details
Current Federal Tax Expense (Benefit)			$ 4,335,642	$ 2,763,366
Deferred taxes			100,378	268,475
Income tax provision	$ 1,491,869	$ 954,093	$ 4,436,020	$ 3,031,841

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

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