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Warrants (Tables) (Warrant [Member]) | 12 Months Ended
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Dec. 31, 2012
Warrant [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Significant assumptions used to measure the fair value of warrants |
|  | 2012 |  |  | 2011 |
Stock price |  | $ | 0.30 |  |  | $ | 0.38 |
Term |  | 2.84-5 Years |  |  | 3.82 Years |
Volatility |  |  | 50 | % |  |  | 50 | %
Risk-free interest rate |  |  | 0.36-0.72 | % |  |  | 0.60 | %
Exercise prices |  | $ | 0.25-0.45 |  |  | $ | 0.25 |
Dividend yield |  |  | 0.00 | % |  |  | 0.00 | %
Delta |  |  | 0.08 |  |  |  | 0.08 |
Up ratio |  |  | 1.144 |  |  |  | 1.144 |
Down ratio |  |  | 0.857 |  |  |  | 0.857 |
Up transition probability |  |  | 0.500 |  |  |  | 0.500 |

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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