Note 14 - Unusual and Infrequent Expenses (Details Textual) - USD ($)	3 Months Ended	9 Months Ended
Jun. 30, 2016	Jun. 30, 2016
Unusual or Infrequent Expense	$ 61,385	$ 897,157

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

No definition available.

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