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Fair Value Measurements (Details Narrative) - USD ($) | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Cash and cash equivalents | $ 1,973,435 | $ 13,149,604 | $ 2,138,593 |  |  |  | $ 13,149,604 |  | $ 1,973,435 |  | $ 8,852,281 | $ 2,406,596 |
Change in valuation of warrant derivative liabilities |  |  |  |  |  |  |  |  |  |  | (1,015,151) | 964,124 |
Change in valuation of embedded derivative liabilities | (5,621,000) | (1,396,000) | (2,383,000) | $ 459,472 | $ 128,544 |  | (3,779,000) | $ 128,544 | (9,400,000) | $ 588,016 | (5,040,000) | (2,971,694) |
Warrant derivative liabilities | $ 1,836,894 | $ 1,906,005 | $ 1,739,930 |  |  |  | $ 1,906,005 |  | $ 1,836,894 |  | 1,644,200 | 1,364,235 |
Series G Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant derivative liabilities |  |  |  |  |  |  |  |  |  |  | 72,563 | 72,563 |
L2 Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of unearned revenues |  |  |  |  |  |  |  |  |  |  | 41,101,381 |  |
Warrant derivative liabilities |  |  |  |  |  |  |  |  |  |  |  | 418,214 |
Adjustment to additional paid in capital |  |  |  |  |  |  |  |  |  |  | 735,186 |  |
Strome Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant derivative liabilities |  |  |  |  |  |  |  |  |  |  | 1,036,687 | 587,971 |
B. Riley Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant derivative liabilities |  |  |  |  |  |  |  |  |  |  | $ 607,513 | $ 358,050 |
Expected Life [Member] | L2 Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, term |  |  |  |  |  |  |  |  |  |  | 3 years 9 months | 4 years 5 months 9 days |
Expected Life [Member] | Strome Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, term |  |  |  |  |  |  |  |  |  |  | 3 years 5 months 12 days | 4 years 5 months 12 days |
Expected Life [Member] | B. Riley Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, term |  |  |  |  |  |  |  |  |  |  | 5 years 9 months 18 days | 6 years 9 months 18 days |
Measurement Input, Risk Free Interest Rate [Member] | L2 Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, percentages |  |  |  |  |  |  |  |  |  |  | 1.56% | 2.49% |
Measurement Input, Risk Free Interest Rate [Member] | Strome Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, percentages |  |  |  |  |  |  |  |  |  |  | 1.62% | 249.00% |
Measurement Input, Risk Free Interest Rate [Member] | B. Riley Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, percentages |  |  |  |  |  |  |  |  |  |  | 1.76% | 2.59% |
Volatility Factor [Member] | L2 Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, percentages |  |  |  |  |  |  |  |  |  |  | 130.46% | 124.40% |
Volatility Factor [Member] | Strome Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, percentages |  |  |  |  |  |  |  |  |  |  | 144.56% | 124.22% |
Volatility Factor [Member] | B. Riley Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, percentages |  |  |  |  |  |  |  |  |  |  | 127.63% | 121.65% |
Dividend Rate [Member] | L2 Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, percentages |  |  |  |  |  |  |  |  |  |  | 0.00% | 0.00% |
Dividend Rate [Member] | Strome Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, percentages |  |  |  |  |  |  |  |  |  |  | 0.00% | 0.00% |
Dividend Rate [Member] | B. Riley Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, percentages |  |  |  |  |  |  |  |  |  |  | 0.00% | 0.00% |
Market Price [Member] | L2 Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, price per share |  |  |  |  |  |  |  |  |  |  | $ 0.89 | $ 0.48 |
Market Price [Member] | Strome Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, price per share |  |  |  |  |  |  |  |  |  |  | 0.80 | 0.48 |
Market Price [Member] | B. Riley Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, price per share |  |  |  |  |  |  |  |  |  |  | 0.80 | 0.48 |
Exercise Price [Member] | L2 Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, price per share |  |  |  |  |  |  |  |  |  |  | 0.50 | 0.50 |
Exercise Price [Member] | Strome Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, price per share |  |  |  |  |  |  |  |  |  |  | 4.50 | 0.50 |
Exercise Price [Member] | B. Riley Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value assumptions, measurement input, price per share |  |  |  |  |  |  |  |  |  |  | $ 1.00 | $ 1.00 |

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