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Major Customers, Suppliers, Segment and Related Information (Details Textual)	12 Months Ended
	Sep. 30, 2012 customers Segment	Sep. 30, 2011 customers
Major Customers, Suppliers, Segment and Related Information (Textual) [Abstract]
Number of customers, recorded more than 10% of revenues	2	2
Minimum percentage of revenue require to be disclosed as major customer	10.00%	10.00%
Number of reportable segments	1
Customer 1 [Member]
Revenue, Major Customer [Line Items]
Revenues from customers	36.00%	46.00%
Customer 2 [Member]
Revenue, Major Customer [Line Items]
Revenues from customers		12.00%

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- Details

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- Definition

Minimum percentage of revenue require to be disclosed as major customer.

+ References

No definition available.

+ Details

Name:	lrad_MinimumPercentageOfRevenueRequireToBeDisclosedAsMajorCustomer
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- Definition

Number of customers attaining specified percentage of revenue.

+ References

No definition available.

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- Definition

Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues.

+ References

No definition available.

+ Details

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

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