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Document And Entity Information
 3 Months Ended
Dec. 31, 2013
Jan. 29, 2014
Document and Entity Information [Abstract]    
Entity Registrant Name LRAD Corp  
Document Type 10-Q  
Current Fiscal Year End Date --09-30  
Entity Common Stock, Shares Outstanding   33,133,380
Amendment Flag false  
Entity Central Index Key 0000924383  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Entity Filer Category Smaller Reporting Company  
Entity Well-known Seasoned Issuer No  
Document Period End Date Dec. 31, 2013  
Document Fiscal Year Focus 2014  
Document Fiscal Period Focus Q1