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10. Stockholders Equity (Tables) | 12 Months Ended
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Dec. 31, 2012
Stockholders Equity Tables |
Weighted-average assumptions | The following weighted-average assumptions were used for grants issued during 2012 and 2011 under the ASC No. 718 requirements:
|  |  |  |  |  | 2012 |  | 2011
Weighted average risk-free rate | 0.53% |  | 1.54%
Weighted average volatility | 95.21% |  | 97.70%
Dividend yield | 0.00% |  | 0.00%
Expected life | 5.71 years |  | 5.22 years
Stock option activity | The following table summarizes stock option activity for the year ended December 31, 2012:
|  | Outstanding Options |  |  | Weighted Average Exercise Price per Share |  |  | Weighted Average Remaining Contractual Life (in years) |  |  | Aggregate Intrinsic Value |
Outstanding December 31, 2011 |  |  | 4,314,000 |  |  | $ | 0.59 |  |  |  | 7.74 |  |  | $ | 2,000 |
Granted |  |  | 452,000 |  |  |  | 0.15 |  |  |  | – |  |  |  | – |
Cancelled |  |  | (1,351,000 | ) |  |  | 0.51 |  |  |  | – |  |  |  | – |
Forfeited |  |  | (1,596,000 | ) |  |  | 0.45 |  |  |  |  |  |  |  |  |
Expired |  |  | (5,000 | ) |  |  | 0.98 |  |  |  | – |  |  |  | – |
Outstanding December 31, 2012 |  |  | 1,814,000 |  |  | $ | 0.66 |  |  |  | 6.37 |  |  | $ | 25,000 |
Options vested and exercisable at December 31, 2012 |  |  | 1,330,000 |  |  | $ | 0.82 |  |  |  | 5.39 |  |  | $ | 2,000 |
Restricted stock unit activity | The following table summarizes restricted stock unit activity during 2012:
|  |  |  | Outstanding Restricted Stock Units |  |  | Weighted Average Fair Value per Share |
December 31, 2011 |  |  |  | 49,000 |  |  | $ | 0.31 |
| Granted |  |  |  | 620,000 |  |  |  | – |
| Released |  |  |  | (44,000 | ) |  |  | – |
| Cancelled |  |  |  | (65,000 | ) |  |  | – |
December 31, 2012 |  |  |  | 560,000 |  |  | $ | 0.14 |
Balance exercisable at December 31, 2012 |  |  |  | – |  |  |  |  |
Warrant activity | The following summarizes warrant activity during 2012:
|  |  | Outstanding Warrants |  |  | Weighted Average Exercise Price per Share |  |  | Weighted Average Remaining Contractual Life (in years) |
Outstanding December 31, 2011 |  |  |  | 4,500,000 |  |  | $ | 0.79 |  |  |  | 5.35 |
| Granted |  |  |  | – |  |  |  | – |  |  |  | – |
| Exercised |  |  |  | – |  |  |  | – |  |  |  | – |
| Forfeited |  |  |  | – |  |  |  | – |  |  |  | – |
Outstanding December 31, 2012 |  |  |  | 4,500,000 |  |  | $ | 0.79 |  |  |  | 4.35 |
Balance exercisable at December 31, 2012 |  |  |  | 4,500,000 |  |  | $ | 0.79 |  |  |  | 4.35 |

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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