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Note 16 - Unusual and Infrequent Expenses (Details Textual)	12 Months Ended
	Sep. 30, 2016 USD ($)
Unusual or Infrequent Expense	$ 1,138,183

X

- Definition

Amount of expense for legal, consulting, severance and related benefits, and tax incurred during the period.

+ References

No definition available.

+ Details

Name:	lrad_UnusualOrInfrequentExpense
Namespace Prefix:	lrad_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration