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Major Customers, Suppliers, Segment and Related Information (Details 1) (USD $) | 12 Months Ended
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Sep. 30, 2012 | Sep. 30, 2011
Revenues by product line |  |
Total revenues | $ 14,792,338 | $ 26,506,821
LRAD [Member] |  |
Revenues by product line |  |
Total revenues | 14,411,374 | 26,196,063
SoundSaber [Member] |  |
Revenues by product line |  |
Total revenues | 241,951 | 147,713
Other [Member] |  |
Revenues by product line |  |
Total revenues | $ 139,013 | $ 163,045

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- Definition Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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