Significant Accounting Policies (Policies)	9 Months Ended
Significant Accounting Policies (Policies)	Jun. 30, 2015
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	General The Company’s unaudited condensed consolidated financial statements included herein have been prepared in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles have been condensed or omitted pursuant to such rules and regulations. In our opinion, the accompanying statements reflect adjustments necessary to present fairly the financial position, results of operations, and cash flows for those periods indicated, and contain adequate disclosure to make the information presented not misleading. Adjustments included herein are of a normal, recurring nature unless otherwise disclosed in the footnotes. The condensed consolidated financial statements and notes thereto should be read in conjunction with the Company’s audited financial statements and notes thereto for the year ended September 30, 2014 included in the Company’s Annual Report on Form 10-K, as filed with the SEC on November 20, 2014. Results of operations for interim periods are not necessarily indicative of the results of operations for a full year.
Consolidation, Policy [Policy Text Block]	Principles of Consolidation The Company has a currently inactive wholly owned subsidiary, LRAD International Corporation, which the Company formed to conduct international marketing, sales and distribution activities. The condensed consolidated financial statements include the accounts of this subsidiary after elimination of intercompany transactions and accounts.
Reclassification, Policy [Policy Text Block]	Reclassifications Where necessary, the prior year’s information has been reclassified to conform to the current year presentation.
New Accounting Pronouncements, Policy [Policy Text Block]	In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”), which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU 2014-09 will replace most existing revenue recognition guidance in U.S. generally accepted accounting principles when it becomes effective. In April 2015, the FASB voted to propose a deferral of the effective date of the new standard by one year. On July 9, 2015, this deferral was approved by the FASB. The final ASU would permit public entities to apply the new revenue standard to interim and annual reporting periods beginning after December 15, 2017. The Company is evaluating the effect that ASU 2014-09 will have, if any, on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting. In June 2014, the FASB issued ASU No. 2014-12, Compensation – Stock Compensation: Accounting for Share-Based Payments When the Terms of an Award Provide that a Performance Target Could be Achieved after the Requisite Service Period . The guidance requires that a performance target that affects vesting, and that could be achieved after the requisite service period, be treated as a performance condition. The guidance will be effective for the Company in the fiscal quarter beginning January 1, 2016, and early adoption is permitted. The Company is currently evaluating the impact of this guidance, if any, on its consolidated financial statements and related disclosures. In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements – Going Concern (subtopic 205-40). The guidance requires disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern. The guidance will be effective for the Company in the fiscal quarter beginning January 1, 2017. The Company is currently evaluating the impact of this guidance, if any, on its consolidated financial statements and related disclosures. In July 2015, the FASB issued ASU No. 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory (“ASU 2015-11”). The guidance requires an entity to measure inventory at the lower of cost or net realizable value, which is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation, rather than the lower of cost or market in the previous guidance. This amendment applies to inventory that is measured using first-in, first-out (FIFO). This amendment is effective for public entities for fiscal years beginning after December 15, 2016, including interim periods within those years. A reporting entity should apply the amendments prospectively with earlier application permitted as of the beginning of an interim or annual reporting period. The Company is currently evaluating the impact of this guidance, if any, on its consolidated financial statements and related disclosures.