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Summary of Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2012
Accounting Policies [Abstract] |
Property, Plant and Equipment [Table Text Block] | Depreciation and amortization is computed using the straight-line method and half-year convention over the estimated useful lives of the assets as follows:
Equipment | 3 years
Furniture and fixtures | 5 - 10 years
Software | 3 years
Leasehold improvements | 3 years
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] | The Company used the following assumptions for options granted under the 2007 and the 2011 Equity Incentive Plans during the three and nine months ended September 30, 2012 and 2011:
| Three Months Ended |  | Nine Months Ended
2007 Equity Incentive Plan Assumptions | September 30, 2012 |  | September 30, 2011 |  | September 30, 2012 |  | September 30, 2011
Expected term | n/a |  | n/a |  | n/a |  | 5 years
Weighted average volatility | n/a |  | n/a |  | n/a |  | 54.96%
Weighted average risk free interest rate | n/a |  | n/a |  | n/a |  | 2.36%
Expected dividends | n/a |  | n/a |  | n/a |  | —
| Three Months Ended |  | Nine Months Ended
2011 Equity Incentive Plan Assumptions | September 30, 2012 |  | September 30, 2011 |  | September 30, 2012 |  | September 30, 2011
Expected term | 5 years |  | 5 years |  | 5 years |  | 5 years
Weighted average volatility | 54.46% |  | 54.89% |  | 54.90% |  | 55.05%
Weighted average risk free interest rate | 0.65% |  | 1.64% |  | 0.75% |  | 1.84%
Expected dividends | — |  | — |  | — |  | —

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- Definition Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph b -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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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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