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Geographic Information (Tables)

3 Months Ended

Aug. 31, 2018

Geographic Information Disclosure [Abstract]

Revenue from External Customers by Geographic Areas [Table Text Block]

	Three Months Ended August 31,
						2018			2017
Revenues from sales to unaffiliated customers:
United States	$	143,000		$	187,000
Asia		648,000			620,000
Europe		392,000			532,000
South America		71,000			75,000
Middle East		19,000			26,000
Other		--			4,000
	$	1,273,000		$	1,444,000

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- References

No definition available.

+ Details

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- Definition

Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph a
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599

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