Note 6 - Major Customer and Vendor (Details)	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Details
Number Of Major Distributors	10	9
Concentration Risk, Other Risk	Sales to two distributors represented 36% and 29% of total sales	Sales to two distributors represented 36% and 33% of total sales
Concentration Risk, Product	71%	68%
Concentration Risk, Supplier	The purchases from two other vendors represented 34% and 27% of the Company’s total purchases	The purchases from three other vendors represented 42%, 20% and 3% of the Company’s total purchases