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Statements of Stockholders' Equity (USD $) | Total | Common Stock | Additional Paid-In Capital | Accumulated Deficit | Accumulated Other Comprehensive Income
--- | --- | --- | --- | --- | ---
Beginning Balance at Sep. 30, 2010 | $ 1,001,459 | $ 17,816 | $ 16,477,981 | $ (15,494,338) |
Beginning Balance, shares at Sep. 30, 2010 |  | 17,816,249 |  |  |
Conversion of debentures | 1,063,926 | 1,419 | 1,062,507 |  |
Conversion of debentures, shares |  | 1,418,573 |  |  |
Issuance of common stock | 14,595,366 | 3,357 | 14,592,009 |  |
Issuance of common stock, shares |  | 3,357,143 |  |  |
Exercise of stock options | 220,297 | 651 | 219,646 |  |
Exercise of stock options, shares | (942,639) | 651,951 |  |  |
Exercise of warrants | 37,917 | 42 | 37,875 |  |
Exercise of warrants, shares |  | 41,666 |  |  |
Cashless exercise of warrants |  | 616 | (616) |  |
Cashless exercise of warrants, shares |  | 615,448 |  |  |
Cashless exercise of stock options |  | 243 | (243) |  |
Cashless exercise of stock options, shares |  | 243,336 |  |  |
Stock-based compensation expense | 1,271,238 |  | 1,271,238 |  |
Components of other comprehensive income: |  |  |  |  |
Net loss | (125,057) |  |  | (125,057) |
Change in unrealized loss on investments | (9,855) |  |  |  | (9,855)
Total other comprehensive loss | (134,912) |  |  |  |
Ending Balance at Sep. 30, 2011 | 18,055,291 | 24,144 | 33,660,397 | (15,619,395) | (9,855)
Ending Balance, shares at Sep. 30, 2011 | 24,144,366 | 24,144,366 |  |  |
Exercise of stock options | 732,287 | 1,441 | 730,846 |  |
Exercise of stock options, shares | (1,812,215) | 1,440,737 |  |  |
Cashless exercise of warrants |  | 111 | (111) |  |
Cashless exercise of warrants, shares |  | 110,926 |  |  |
Cashless exercise of stock options |  | 299 | (299) |  |
Cashless exercise of stock options, shares |  | 299,187 |  |  |
Stock-based compensation expense | 2,599,858 |  | 2,599,858 |  |
Components of other comprehensive income: |  |  |  |  |
Net loss | (7,839,996) |  |  | (7,839,996) |
Change in unrealized loss on investments | 9,239 |  |  |  | 9,239
Total other comprehensive loss | (7,830,757) |  |  |  |
Ending Balance at Sep. 30, 2012 | $ 13,556,679 | $ 25,995 | $ 36,990,691 | $ (23,459,391) | $ (616)
Ending Balance, shares at Sep. 30, 2012 | 25,995,216 | 25,995,216 |  |  |

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- Definition Number of share options (or share units) exercised during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 + Details
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- Definition The net amount of stock issued during the period upon the conversion of convertible securities, net of adjustments (for example, to additional paid in capital) including the write-off of an equity component recognized to record the convertible debt instrument as two separate components - a debt component and an equity component. This item is meant to disclose the value of shares issued on conversion of convertible securities that were recorded as two separate (debt and equity) components. + References No definition available. + Details
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- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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- Definition Value of stock issued as a result of the exercise of stock options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29-31) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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