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Property and Equipment (Details Textual) (USD $) | 12 Months Ended
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Sep. 30, 2012
Property and Equipment (Textual) [Abstract] |
Property and equipment additions | $ 201,804
Machinery and equipment [Member] |
Property and Equipment (Textual) [Abstract] |
Disposal of property and equipment | 464,500
Leasehold improvements [Member] |
Property and Equipment (Textual) [Abstract] |
Disposal of property and equipment | 328,195
Property and equipment additions | 55,298
Computer Equipment [Member] |
Property and Equipment (Textual) [Abstract] |
Property and equipment additions | $ 93,521

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- Details
Name: | lrad_PropertyAndEquipmentTextualAbstract
Namespace Prefix: | lrad_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentAdditions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Divestiture of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentDisposals
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration