v3.19.3

Note 9 - Warrants (Details Textual) |  |  |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | ---
May 03, 2019 USD ($) $ / shares shares | Jan. 31, 2016 USD ($) $ / shares shares | Nov. 30, 2015 USD ($) $ / shares shares | Jul. 01, 2010 | Jun. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2018 USD ($) | Dec. 31, 2018 USD ($) shares | Dec. 31, 2017 USD ($) | Nov. 24, 2015 shares
Fair Value Adjustment of Warrants |  |  |  |  |  | $ 95,000 | $ 1,000 | $ 98,000 | $ (12,000) |
Exchange of Warrants Upon Merger |  |  |  |  | $ 234,000 |  |  |  |  |
Warrant to Purchase Series A Convertible Preferred Stock Under Oxford Loan Agreement [Member] |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares |  | 131,810 | 197,715 |  |  |  |  |  |  | 11,829
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares |  | $ 0.2276 | $ 0.2276 |  |  |  |  |  |  |
Warrants Not Settleable in Cash, Fair Value Disclosure |  | $ 22,000 | $ 33,000 |  |  |  |  |  |  |
Percentage of Note Payable Principal |  |  |  | 20.00% |  |  |  |  |  |
Class of Warrants or Right, Exercisable, Term |  | 10 years | 10 years | 5 years |  |  |  |  |  |
Warrant to Purchase Series A Convertible Preferred Stock Under Oxford Loan Agreement [Member] | Measurement Input, Expected Term [Member] |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  | 10 | 10 |  |  |  |  |  |  |
Warrant to Purchase Series A Convertible Preferred Stock Under Oxford Loan Agreement [Member] | Measurement Input, Expected Term [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  | 3.92 |  |  |  |  |  |
Warrant to Purchase Series A Convertible Preferred Stock Under Oxford Loan Agreement [Member] | Measurement Input, Risk Free Interest Rate [Member] |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  | 0.0209 | 0.0207 |  |  |  |  |  |  |
Warrant to Purchase Series A Convertible Preferred Stock Under Oxford Loan Agreement [Member] | Measurement Input, Price Volatility [Member] |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  | 0.686 | 0.687 |  |  |  |  |  |  |
Warrant to Purchase Series A Convertible Preferred Stock Under Oxford Loan Agreement [Member] | Measurement Input, Conversion Price [Member] |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  | 0.20 |  |  |  |  |  |  |
Warrant to Purchase Series A Convertible Preferred Stock Under Oxford Loan Agreement [Member] | Measurement Input, Share Price [Member] |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  | 0.23 |  |  |  |  |  |  |  |
Warrants For Series A Convertible Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding |  |  |  |  |  |  |  | $ 140,000 | $ 42,000 |
Class of Warrant or Right, Outstanding | shares |  |  |  |  |  |  |  | 330 |  |
Class of Warrants or Right, Exercisable, Term |  |  |  | 7 years |  |  |  |  |  |
Warrants For Series A Convertible Preferred Stock [Member] | Measurement Input, Expected Term [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  |  |  |  |  | 6.92 | 7.92 |
Warrants For Series A Convertible Preferred Stock [Member] | Measurement Input, Expected Term [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  | 7 |  |  |  | 7.08 | 8.08 |
Warrants For Series A Convertible Preferred Stock [Member] | Measurement Input, Risk Free Interest Rate [Member] |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  |  |  |  |  |  | 2.28 |
Warrants For Series A Convertible Preferred Stock [Member] | Measurement Input, Risk Free Interest Rate [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  | 0.0146 |  |  |  | 2.56 |  |
Warrants For Series A Convertible Preferred Stock [Member] | Measurement Input, Risk Free Interest Rate [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  | 0.0266 |  |  |  | 2.59 |  |
Warrants For Series A Convertible Preferred Stock [Member] | Measurement Input, Price Volatility [Member] |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  |  |  |  |  |  | 71.00 |
Warrants For Series A Convertible Preferred Stock [Member] | Measurement Input, Price Volatility [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  | 0.736 |  |  |  | 76.84 |  |
Warrants For Series A Convertible Preferred Stock [Member] | Measurement Input, Price Volatility [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  | 0.815 |  |  |  |  |  |
Warrants For Series A Convertible Preferred Stock [Member] | Measurement Input, Conversion Price [Member] |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Measurement Input |  |  |  | 0.2276 |  |  |  |  |  |
Warrant Issued In Connection With Term Loan A And B [Member] |  |  |  |  |  |  |  |  |  |
Fair Value Adjustment of Warrants |  |  |  |  |  |  |  | $ 98,000 | $ (12,000) |
Alliqua Warrants Assumed in Merger [Member] |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Outstanding | shares | 38,945 |  |  |  |  |  |  |  |  |
Alliqua Warrants Assumed in Merger [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares | $ 26.40 |  |  |  |  |  |  |  |  |
Alliqua Warrants Assumed in Merger [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares | $ 28.20 |  |  |  |  |  |  |  |  |
Alliqua Biomedical, Inc. [Member] | Warrant to Purchase Common Stock Converted in Merger [Member] |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares | 11,829 |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares | $ 6.34 |  |  |  |  |  |  |  |  |
Exchange of Warrants Upon Merger | $ 234,000 |  |  |  |  |  |  |  |  |

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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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