Note 7 - Income Taxes: Schedule of Provision for Income Tax Expense (Benefit) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Details
Current Federal Tax Expense (Benefit)			$ 2,003,263	$ 1,283,163
Deferred Income Tax Expense (Benefit)			32,707
Income tax	$ 1,059,265	$ 738,907	$ 2,035,970	$ 1,283,163