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v2.4.0.6

Restricted Cash (Details Textual) | 12 Months Ended
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Sep. 30, 2012
Restricted Cash (Textual) [Abstract] |
First year of product warranty | First year of product warranty
Extended warranty and maintenance the noncurrent portion | 7 years
Current portion will become unrestricted upon completion of the warranty term | 1 year
Noncurrent portion extended warranty term | 7 years

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- Definition Current portion will become unrestricted upon completion of the warranty term. + References No definition available. + Details
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Namespace Prefix: | lrad_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Extended product warranty included in restricted cash noncurrent renewed annually. + References No definition available. + Details
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Namespace Prefix: | lrad_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Non current portion will become unrestricted upon completion of extended warranty term. + References No definition available. + Details
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Namespace Prefix: | lrad_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Restricted cash current covering warranty. + References No definition available. + Details
Name: | lrad_RestrictedCashCurrentCoveringWarranty
Namespace Prefix: | lrad_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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