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Note 1 - Operations | 12 Months Ended
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Sep. 30, 2019
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 multidirectional sound technologies, voice broadcast products, and location-based mass messaging solutions for emergency warning and workforce management. The principal markets for the Company’s proprietary sound reproduction technologies, voice broadcast products and mass messaging solutions are in North and South America, Europe, Middle East and Asia. On October 23, 2019, the Company announced that it was rebranding and began doing business as Genasys Inc.

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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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -URI http://asc.fasb.org/topic&trid=2134479 + Details
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