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BUSINESS SEGMENTS (Tables)
12 Months Ended
May. 31, 2015
Segment Reporting [Abstract]  
Revenue from External Customers by Geographic Areas [Table Text Block]

 

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