Warrants (Tables)
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12 Months Ended |
Dec. 31, 2018 |
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| Warrants [Abstract] |
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| Summary Of Warrants Outstanding |
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Number of Warrants:
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Warrant Issuance
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December 31, 2018
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December 31, 2017
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Exercise Price
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Expiration Date
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Liability-classified Warrants
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July 2013 Investor Warrants
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-
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200,000
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$
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5.90
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July 2018
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October 2013 Investor Warrants
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-
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231,732
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$
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5.75
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Oct. 2018
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January 2014 Investor Warrants
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476,193
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476,193
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$
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12.80
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Jan. 2019
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November 2015 Investor Warrants
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1,250,001
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1,250,001
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$
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5.30
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May 2021
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November 2015 Placement Agent Warrants
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3,334
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3,334
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$
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5.30
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Nov. 2020
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March 2016 Investor Warrants
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607,806
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607,806
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$
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4.20
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Sept. 2021
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September 2016 Investor Warrants
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805,000
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805,000
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$
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3.00
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Mar. 2022
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June 2017 Investor Warrants
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1,515,152
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1,515,152
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$
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4.00
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Dec. 2022
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June 2017 Placement Agent Warrants
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181,818
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181,818
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$
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4.13
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Jun. 2022
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October 2017 Investor Warrants
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1,632,654
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1,632,654
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$
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2.85
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Apr. 2023
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October 2017 Placement Agent Warrants
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195,919
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195,919
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$
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3.06
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Oct. 2022
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Total liability classified warrants
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6,667,877
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7,099,609
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Equity-classified Warrants
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October 2018 Investor Warrants
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5,769,231
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-
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$
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1.67
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Apr. 2024
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October 2018 Placement Agent Warrants
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346,154
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-
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$
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1.63
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Oct. 2023
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Total equity-classified warrants
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6,115,385
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-
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Total outstanding warrants
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12,783,262
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7,099,609
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| Summary Of Changes In Warrants Outstanding During The Period |
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Number of Warrants
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Liability-classified
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Equity- classified
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Total
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Weighted average exercise price
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Balance, January 1
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7,099,609
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-
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7,099,609
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$
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4.55
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Issued during the period
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-
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6,115,385
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6,115,385
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$
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1.67
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Exercised during the period
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-
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-
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-
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$
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-
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Expired during the period
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(431,732)
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-
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(431,732)
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$
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5.82
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Balance, December 31
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6,667,877
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6,115,385
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12,783,262
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$
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4.55
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| Schedule Of Fair Value Of Warrants Issued |
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Fair Value as of:
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Warrant Issuance:
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December 31, 2018
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December 31, 2017
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July 2013 Investor Warrants
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$
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-
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$
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8,762
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October 2013 Investor Warrants
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-
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26,288
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January 2014 Investor Warrants
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-
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29,257
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November 2015 Investor Warrants
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234,918
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1,260,050
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November 2015 Placement Agent Warrants
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435
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2,936
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March 2016 Investor Warrants
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160,099
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697,554
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September 2016 Investor Warrants
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333,834
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1,054,083
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June 2017 Investor Warrants
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623,324
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1,981,864
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June 2017 Placement Agent Warrants
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65,149
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221,591
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October 2017 Investor Warrants
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801,551
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2,305,552
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October 2017 Placement Agent Warrants
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88,276
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265,698
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Total:
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$
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2,307,586
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$
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7,853,635
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| Schedule Of Assumptions Used In Calculating Fair Value Of Warrants |
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December 31, 2018
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December 31, 2017
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Trading market prices
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$
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0.93
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$
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2.02
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Estimated future volatility
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105
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%
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104
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%
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Dividend
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-
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-
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Estimated future risk-free rate
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2.35-2.53
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%
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2.14-2.45
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%
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Equivalent volatility
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99-104
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%
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85-104
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%
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Equivalent risk-free rate
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2.51-2.55
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%
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1.30-1.89
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%
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| Schedule Of Unrealized Gain/(Loss) On Fair Value Of Warrants |
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For the Year Ended December 31,
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2018
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2017
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Expired and Fully Exercised Warrants
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$
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-
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$
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(855,000)
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July 2013 Investor Warrants
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8,762
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(6,702)
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October 2013 Investor Warrants
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26,288
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(22,580)
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January 2014 Investor Warrants
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29,257
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(28,543)
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November 2015 Investor Warrants
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1,025,132
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(999,550)
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November 2015 Placement Agent Warrants
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2,501
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(365,748)
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March 2016 Investor Warrants
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537,455
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(2,708,163)
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September 2016 Investor Warrants
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720,249
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(4,571,872)
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June 2017 Investor Warrants
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1,358,540
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1,691,304
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June 2017 Placement Agent Warrants
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156,442
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212,729
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October 2017 Investor Warrants
|
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1,504,001
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54,907
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October 2017 Placement Agent Warrants
|
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177,422
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5,056
|
|
Total:
|
$
|
5,546,049
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$
|
(7,594,162)
|
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