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Note 1 - Operations	3 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Nature of Operations [Text Block]	1. OPERATIONS LRAD ® Corporation, a Delaware corporation (the “Company”), is engaged in the design, development and commercialization of directed and omnidirectional sound technologies and products. The principal markets for the Company’s proprietary sound reproduction technologies and products are in North and South America, Europe, Middle East and Asia.

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- Definition

The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-URI http://asc.fasb.org/topic&trid=2134479

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