BUSINESS SEGMENTS (Details) - Geographic information regarding net sales (USD $)	12 Months Ended
	May 31, 2014	May 31, 2013
Net sales:
Net Sales	$ 5,120,451	$ 6,472,960
Europe [Member]
Net sales:
Net Sales	2,450,000	2,840,000
UNITED STATES
Net sales:
Net Sales	1,256,000	822,000
Asia [Member]
Net sales:
Net Sales	1,300,000	2,770,000
South America [Member]
Net sales:
Net Sales	19,000	7,000
Middle East [Member]
Net sales:
Net Sales	76,000	31,000
Other Foreign [Member]
Net sales:
Net Sales	$ 19,000	$ 3,000