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Derivatives (Tables) | 12 Months Ended
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Dec. 31, 2015
Derivatives [Abstract] |
Schedule of derivative warrant instruments activity |
|  | Shares subject to warrants |  |  | Fair Value |
Balance, December 31, 2013 |  |  | 1,968,623 |  |  | $ | 6,707,255 |
Transfer from liability to equity classification |  |  | (319,294 | ) |  |  | (2,203,443 | )
Change in fair value |  |  | - |  |  |  | 2,206,099 |
Balance, December 31, 2014 |  |  | 1,649,329 |  |  |  | 6,709,911 |
Transfer from liability to equity classification |  |  | (21,960 | ) |  |  | (48,691 | )
Change in fair value |  |  | - |  |  |  | (3,812,318 | )
Balance, December 31, 2015 |  |  | 1,627,369 |  |  | $ | 2,848,902 |
Summary of fair values of derivative warrants on basis of valuation model |
|  | December 31, |  |  | December 31, |
|  | 2015 |  |  | 2014 |
Market value of common stock on measurement date (1) |  | $ | 3.23 |  |  | $ | 5.89 |
Adjusted exercise price |  | $ | 2.48 |  |  | $ | 2.48 |
Risk free interest rate (2) |  |  | 1.06 | % |  |  | 1.10 | %
Warrant lives in years |  |  | 2.0 years |  |  |  | 3.0 years |
Expected volatility (3) |  |  | 87 | % |  |  | 71 | %
Expected dividend yield (4) |  |  | - |  |  |  | - |
Probability of stock offering in any period over 5 years (5) |  |  | 100 | % |  |  | 100 | %
Offering price (6) |  | $ | 2.60 |  |  | $ | 4.50 |
(1) | The market value of common stock at the above measurement dates is based on the Company’s trading price quoted on the NYSE MKT.
(2) | The risk-free interest rate was determined by management using the Treasury Bill rate as of the respective measurement date.
(3) | As of December 31, 2015, the volatility was estimated using the historical volatilities of the Company’s common stock traded in NYSE MKT market. As of December 31, 2014, the volatility was estimated using the historical volatilities of comparable companies in the same industry and region.
(4) | Management determined the dividend yield to be 0% based upon its expectation that it will not pay dividends for the foreseeable future.
(5) | Management determines the probability of future stock offering at each evaluation date.
(6) | Represents the estimated offering price in future offerings as determined by management.

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- Definition Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=56946850&loc=d3e41641-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624163-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=56946850&loc=d3e41678-113959 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=56946850&loc=d3e41638-113959 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5580258-113959 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5579245-113959 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5579240-113959 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=56946850&loc=d3e41620-113959 Reference 11: 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.(n)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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