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Warrants - Summary of information about stock warrants (Details 1) |  | 12 Months Ended
--- | --- | ---
Dec. 07, 2009 | Dec. 31, 2013 Warrant Exercise Price $ 1.10 | Dec. 31, 2013 Warrant Exercise Price $ 1.00
Class of Warrant or Right [Line Items] |  |  |
Exercise price (in dollars per share) | 1.00 | 1.10 | 1.00
Number Outstanding |  | 1,342,500 | 2,000,004
Weighted Average Remaining Contractual Life |  | 1 month | 7 years
Number Exercisable |  | 1,342,500 | 2,000,004

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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Subparagraph 4 -Article 4 + Details
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