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Derivatives (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Derivatives (Textual) |  |  |
Fair value of warrants |  |  | $ 2,100,000
Expected dividend yield | [1] |  |
Warrant [Member] |  |  |
Derivatives (Textual) |  |  |
Number of warrants exercised |  | 2,013,360 | 2,501,993
Derivative warrants |  | 21,960 | 319,294
Fair value of warrants |  | $ 48,691 | $ 2,203,443
Expected dividend yield |  | 0.00% | 0.00%
Probability of stock offering period |  | 5 years | 5 years
[1] | Management determined the dividend yield to be 0% based upon its expectation that it will not pay dividends for the foreseeable future.

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- Definition Derivative number of warrants. + References No definition available. + Details
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- Definition Number of shares warrant exercise. + References No definition available. + Details
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- Definition Amount of expense (income) related to adjustment to fair value of warrant liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section 25 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6939902&loc=d3e20148-110875 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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