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Intangible Assets (Details Narrative) - USD ($) |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 31, 2016 | Jun. 30, 2020 | Mar. 31, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018
Finite-lived intangible assets, net |  | $ 227,318 |  |  | $ 227,318 |  | $ 340,976 |
2018 Aspire Purchase Agreements [Member] |  |  |  |  |  |  |  |
Finite-lived intangible assets, net |  |  |  |  |  |  | 340,976 |
Finite-lived intangible assets, accumulated amortization |  |  |  |  |  |  | 1,250,238 |
IPR&D Drug Technology Platforms [Member] |  |  |  |  |  |  |  |
Asset impairment charges, total |  |  |  |  |  |  |  |
IPR&D Drug Technology Platforms [Member] | Ovarian Cancer [Member] |  |  |  |  |  |  |  |
Asset impairment charges, total | $ 13,300,000 |  |  |  |  |  |  |
EGEN Inc [Member] |  |  |  |  |  |  |  |
Goodwill, acquisition |  |  |  |  | 2,000,000 |  |  |
EGEN Inc [Member] | Purchase Agreement [Member] |  |  |  |  |  |  |  |
Finite-lived intangible assets acquired |  |  |  |  | $ 1,600,000 |  |  |
Finite-lived intangible asset, useful life |  |  |  |  | 7 years |  |  |
Amortization expense |  | 56,829 |  | $ 56,829 | $ 113,658 | $ 113,658 |  |
Finite-lived intangible assets, net |  | 227,318 |  |  | 227,318 |  |  |
Finite-lived intangible assets, accumulated amortization |  | $ 1,363,896 |  |  | 1,363,896 |  |  |
EGEN Inc [Member] | Glioblastoma Multiforme Brain Cancer [Member] |  |  |  |  |  |  |  |
Asset impairment charges, total |  |  | $ 2,400,000 |  |  |  | $ 7,000,000 | $ 9,400,000
EGEN Inc [Member] | RNA Delivery System [Member] |  |  |  |  |  |  |  |
Asset impairment charges, total |  |  |  |  | 1,500,000 |  |  |
EGEN Inc [Member] | IPR&D Drug Technology Platforms [Member] |  |  |  |  |  |  |  |
Indefinite lived intangible assets |  |  |  |  | $ 24,200,000 |  |  |

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