BUSINESS SEGMENTS

12 Months Ended

May. 31, 2015

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

8.    BUSINESS SEGMENTS 

The Company operates as one segment. Geographic information regarding net sales is approximately as follows:  

	2015		2014
Net sales:
Europe	$	2,716,000	$	2,450,000
United States		1,042,000		1,256,000
Asia		1,016,000		1,300,000
South America		21,000		19,000
Middle East		143,000		76,000
Other foreign		24,000		19,000
Total net sales	$	4,962,000	$	5,120,000