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Convertible Debt - Related Party (Details 1) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018 | Dec. 31, 2017
Debt Disclosure [Abstract] |  |  |  |
Coupon interest expense | $ 59,111 | $ 3,100 | $ 26,433 | $ 667
Noncash Interest Expense |  |  |  |
Amortization of debt discount | 53,979 | 34,608 | 56,253 | 0
Amortization of transaction costs | 2,973 | 0 | 2,283 | 0
Other interest expense |  |  | 9,794 |
Interest expense | $ 116,063 | $ 37,708 | $ 94,763 | $ 667

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