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Note 9 - Share-based Compensation | 9 Months Ended
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Jun. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Disclosure of Compensation Related Costs, Share-based Payments [Text Block] | 9. SHARE-BASED COMPENSATION Stock Option Plans At June 30, 2013, the Company had one equity incentive plan, the 2005 Equity Incentive Plan (“2005 Equity Plan”). The 2005 Equity Plan, as amended, authorizes for issuance as stock options, stock appreciation rights, or stock awards an aggregate of 3,250,000 new shares of common stock to employees, directors or consultants. The total plan reserve includes these new shares and shares reserved under prior plans, allowing for the issuance of up to 4,999,564 shares. At June 30, 2013, there were options outstanding covering 2,870,639 shares of common stock under the 2005 Equity Plan and an additional 1,437,977 shares of common stock available for grant. Stock Option Activity The following table summarizes information about stock option activity during the nine months ended June 30, 2013:
|  | Number |  |  | Weighted Average |
|  | of Shares |  |  | Exercise Price |
Outstanding October 1, 2012 |  |  | 3,463,339 |  |  | $ | 1.31 |
Granted |  |  | 4,000 |  |  | $ | 0.94 |
Forfeited/expired |  |  | (472,000 | ) |  | $ | 1.72 |
Exercised |  |  | (124,700 | ) |  | $ | 0.84 |
Outstanding June 30, 2013 |  |  | 2,870,639 |  |  | $ | 1.26 |
Exercisable June 30, 2013 |  |  | 2,387,960 |  |  | $ | 1.23 |
Options outstanding are exercisable at prices ranging from $0.46 to $3.13 and expire over the period from 2013 to 2023 with an average life of 5.0 years. The aggregate intrinsic value of options outstanding and exercisable at June 30, 2013 was $444,108 and $443,256, respectively. Share-Based Compensation The Company recorded share-based compensation expense and classified it in the condensed consolidated statements of operations as follows:
|  | Three months ended |  |  | Nine months ended |
|  | June 30, |  |  | June 30, |
|  |  | 2013 |  |  |  | 2012 |  |  |  | 2013 |  |  |  | 2012 |
Cost of revenue |  | $ | 1,180 |  |  | $ | 6,070 |  |  | $ | 6,385 |  |  | $ | 19,195 |
Selling, general and administrative |  |  | 178,777 |  |  |  | 174,873 |  |  |  | 539,652 |  |  |  | 411,075 |
Research and development |  |  | 11,798 |  |  |  | 18,366 |  |  |  | 36,021 |  |  |  | 46,509 |
Total |  | $ | 191,755 |  |  | $ | 199,309 |  |  | $ | 582,058 |  |  | $ | 476,779 |
The employee stock options granted in the nine months ended June 30, 2013 and 2012 had a weighted-average estimated fair value of $0.64 per share and $0.88 per share, respectively, using the Black-Scholes option pricing model with the following weighted-average assumptions (annualized percentages):
|  | Nine months ended |
|  | June 30, |
|  | 2013 |  |  | 2012 |
Volatility |  | 77.0% | - | 81.0% |  |  | 81.0% | - | 82.0% |
Risk-free interest rate |  | 0.93% | - | 1.08% |  |  | 0.76% | - | 1.10% |
Forfeiture rate |  |  | 10.0% |  |  |  |  | 10.0% |  |
Dividend yield |  |  | 0.0% |  |  |  |  | 0.0% |  |
Expected life in years |  |  | 6.4 |  |  |  | 5.4 | - | 6.4 |
The Company has never paid cash dividends and has no present intention to pay cash dividends. Expected volatility is based on the historical volatility of the Company’s common stock over the period commensurate with the expected life of the options. The risk-free interest rate is based on rates published by the Federal Reserve Board. The expected life is based on observed and expected time to post-vesting exercise. The expected forfeiture rate is based on past experience and employee retention data. Forfeitures are estimated at the time of the grant and revised in subsequent periods if actual forfeitures differ from those estimates or if the Company updates its estimated forfeiture rate. Such amounts will be recorded as a cumulative adjustment in the period in which the estimate is changed. Since the Company has an NOL carryforward as of June 30, 2013, no excess tax benefit for the tax deductions related to share-based awards was recognized for the nine months ended June 30, 2013 and 2012. As of June 30, 2013, there was approximately $500,000 of total unrecognized compensation cost related to non-vested share-based employee compensation arrangements. The cost is expected to be recognized over a weighted-average period of 1.1 years.

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 + Details
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