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Nature of Operations and Business Activities (Detail Textuals) - USD ($) | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Feb. 16, 2018 | Jan. 19, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Mar. 31, 2020 | Oct. 05, 2018
Nature Of Operations And Business Activities [Line Items] |  |  |  |  |  |
Accumulated deficit |  |  | $ 32,173,282 | $ 33,225,107 |  |
Cash |  |  | 1,829,977 | 1,853,373 | $ 667,000 |
Cash used in operating activities |  |  | (6,027,941) | (3,943,014) |  |
Proceeds from the issuance of common stock and warrants |  |  | 1,919,372 | 3,095,908 |  |
Proceeds from convertible multi-draw credit agreement |  |  | 3,990,699 | 1,946,293 |  |
Emerald Financing Warrant Liability |  |  |  |  |  |
Nature Of Operations And Business Activities [Line Items] |  |  |  |  |  |
Proceeds from the issuance of common stock and warrants | $ (1,750,000) | $ (1,500,000) |  | $ (3,250,000) |  |
Emerald Financing Warrant Liability | Multi-Draw Credit Agreement |  |  |  |  |  |
Nature Of Operations And Business Activities [Line Items] |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  | $ 14,000,000
Principal amounts of borrowing capacity |  |  |  |  |  | $ 250,000
Proceeds from the issuance of common stock and warrants |  |  | 1,919,372 |  |  |
Proceeds from convertible multi-draw credit agreement |  |  | $ 3,990,699 |  |  |

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