Note F - Supplemental Cash Flow Information (Details Textual) - USD ($)	9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2016
Income Taxes Paid	$ 13,500	$ 162,000
Dividends Payable, Current	67,994		$ 67,994
Other Significant Noncash Transaction, Value of Consideration Given	$ 293,000