Subsequent Events	9 Months Ended
Jun. 30, 2012
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	16. SUBSEQUENT EVENTS On July 24, 2012, the Company was served with a complaint filed in the Delaware Court of Chancery captioned Iroquois Master Fund Ltd., Plaintiff, v. Raymond C. Smith, Laura M. Clague, Helen C. Adams, Thomas R. Brown, and Katherine McDermott, Defendants, and LRAD Corporation, Nominal Defendant. The derivative action claims that the defendants breached their fiduciary duties to the Company, caused the Company to waste its corporate assets and were unjustly enriched as a result of obtaining and approving the issuance of stock options to themselves with exercise prices that the plaintiff alleges were below fair market value on the date of grant in violation of the terms of the Company’s 2005 Equity Incentive Plan. The Company was also named in the action as a nominal defendant against which no recovery is sought. The plaintiff seeks rescission or repricing of the applicable stock options and other damages on behalf of the Company. The defendants and the Company believe the plaintiff’s claims are without merit and intend to defend against them vigorously.

Subsequent Events

9 Months Ended

Jun. 30, 2012

16. SUBSEQUENT EVENTS

On July 24, 2012, the Company was served with a complaint filed in the Delaware Court of Chancery captioned Iroquois Master Fund Ltd., Plaintiff, v. Raymond C. Smith, Laura M. Clague, Helen C. Adams, Thomas R. Brown, and Katherine McDermott, Defendants, and LRAD Corporation, Nominal Defendant. The derivative action claims that the defendants breached their fiduciary duties to the Company, caused the Company to waste its corporate assets and were unjustly enriched as a result of obtaining and approving the issuance of stock options to themselves with exercise prices that the plaintiff alleges were below fair market value on the date of grant in violation of the terms of the Company’s 2005 Equity Incentive Plan. The Company was also named in the action as a nominal defendant against which no recovery is sought. The plaintiff seeks rescission or repricing of the applicable stock options and other damages on behalf of the Company. The defendants and the Company believe the plaintiff’s claims are without merit and intend to defend against them vigorously.