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Note 10 - Stockholders' Equity (Details) - Changes in Stockholders' Equity (USD $) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012 | Sep. 29, 2012
Note 10 - Stockholders' Equity (Details) - Changes in Stockholders' Equity [Line Items] |  |  |  |  |
Balances, September 30, 2012 (in Shares) |  |  | 32,374,499 |  |
Balances, September 30, 2012 |  |  | $ 324 |  |
Balances, September 30, 2012 |  |  | 22,421,769 |  | 22,421,769
Issuance of common stock upon exercise of stock options (in Shares) |  |  | (124,700) |  |
Issuance of common stock upon exercise of stock options |  |  | 105,228 |  |
Share-based compensation expense |  |  | 582,058 | 476,779 |
Net loss | (1,108,410) | 200,376 | (1,668,164) | 222,434 |
Balances, June 30, 2013 (in Shares) | 32,499,199 |  | 32,499,199 |  |
Balances, June 30, 2013 | 325 |  | 325 |  |
Balances, June 30, 2013 | 21,440,891 |  | 21,440,891 |  | 22,421,769
Common Stock [Member] |  |  |  |  |
Note 10 - Stockholders' Equity (Details) - Changes in Stockholders' Equity [Line Items] |  |  |  |  |
Balances, September 30, 2012 (in Shares) |  |  |  |  | 32,374,499
Balances, September 30, 2012 |  |  |  |  | 324
Issuance of common stock upon exercise of stock options (in Shares) |  |  | 124,700 |  |
Issuance of common stock upon exercise of stock options |  |  | 1 |  |
Balances, June 30, 2013 (in Shares) | 32,499,199 |  | 32,499,199 |  | 32,374,499
Balances, June 30, 2013 | 325 |  | 325 |  | 324
Additional Paid-in Capital [Member] |  |  |  |  |
Note 10 - Stockholders' Equity (Details) - Changes in Stockholders' Equity [Line Items] |  |  |  |  |
Balances, September 30, 2012 |  |  |  |  | 86,358,011
Issuance of common stock upon exercise of stock options |  |  | 105,227 |  |
Share-based compensation expense |  |  | 582,058 |  |
Balances, June 30, 2013 | 87,045,296 |  | 87,045,296 |  | 86,358,011
Accumulated Deficit [Member] |  |  |  |  |
Note 10 - Stockholders' Equity (Details) - Changes in Stockholders' Equity [Line Items] |  |  |  |  |
Balances, September 30, 2012 |  |  |  |  | (63,936,566)
Net loss |  |  | (1,668,164) |  |
Balances, June 30, 2013 | $ (65,604,730) |  | $ (65,604,730) |  | $ (63,936,566)

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- Definition Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. + 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 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section E Reference 3: 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 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 + Details
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