Note I - Supplemental Cash Flow Information (Details Textual) - USD ($)	9 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Taxes Paid	$ 1,846,000	$ 8,000
Interest Paid, Excluding Capitalized Interest, Operating Activities	17,545	0
Dividends Payable	$ 1,051,417	70,094
Other Significant Noncash Transaction, Value of Consideration Given		$ 385,000