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Note 9 - Commitments and Contingencies (Details) (USD $)	3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Note 9 - Commitments and Contingencies (Details) [Line Items]
Target Bonus Amounts of Percentage of Employee Base Salary Minimum	10.00%lrad_TargetBonusAmountsOfPercentageOfEmployeeBaseSalaryMinimum
Target Bonus Amounts of Percentage of Employee Base Salary Maximum	50.00%lrad_TargetBonusAmountsOfPercentageOfEmployeeBaseSalaryMaximum
Accrued Bonuses, Current (in Dollars)	170,279us-gaap_AccruedBonusesCurrent	$ 0us-gaap_AccruedBonusesCurrent
Level 1 [Member]
Note 9 - Commitments and Contingencies (Details) [Line Items]
Payment of Bonus as Percentage	50.00%lrad_PaymentOfBonusAsPercentage / us-gaap_RangeAxis = lrad_Level1Member
Level 2 [Member]
Note 9 - Commitments and Contingencies (Details) [Line Items]
Payment of Bonus as Percentage	100.00%lrad_PaymentOfBonusAsPercentage / us-gaap_RangeAxis = lrad_Level2Member
Level 3 [Member]
Note 9 - Commitments and Contingencies (Details) [Line Items]
Payment of Bonus as Percentage	200.00%lrad_PaymentOfBonusAsPercentage / us-gaap_RangeAxis = lrad_Level3Member

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Carrying value as of the balance sheet date of obligations incurred and payable for incentive compensation awarded to employees and directors or earned by them based on the terms of one or more relevant arrangements. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Current Liabilities

-URI http://asc.fasb.org/extlink&oid=6509677



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6935-107765



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.20)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6911-107765

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