Geographic Information

3 Months Ended

Aug. 31, 2011

Segment Reporting

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

Note 4: Geographic Information

Financial information about foreign and domestic operations and export sales is as follows:    

	For the Three Months Ended
	8/31/11	8/31/10
Revenues from sales to unaffiliated customers:	------------------	------------------
United States	$     187,000	$     303,000
Asia	631,000	225,000
Europe	582,000	623,000
South America	1,000	1,000
Middle East	4,000	12,000
Other	3,000	14,000
	------------------	------------------
	$  1,408,000	$  1,178,000
	===========	===========

No other geographic concentrations exist where net sales exceed 10% of total net sales.