Summary of Significant Accounting Policies (Detail Textuals) |
12 Months Ended | ||||
|---|---|---|---|---|---|
|
Dec. 31, 2018
USD ($)
segment
|
Sep. 30, 2019
USD ($)
|
Sep. 30, 2018
USD ($)
|
Dec. 31, 2017
USD ($)
|
Dec. 31, 2016
USD ($)
|
|
| Property, Plant and Equipment [Line Items] | |||||
| Restricted cash | $ 4,512 | $ 4,512 | $ 4,502 | $ 4,428 | |
| Property, plant and equipment, depreciation methods | straight-line method | ||||
| Number of reportable segments | segment | 1 | ||||
| Fair value of advance under credit agreement | $ 3,176,824 | 8,247,319 | |||
| Carrying value of total convertible debt - related party | $ 3,296,249 | ||||
| Minimum | |||||
| Property, Plant and Equipment [Line Items] | |||||
| Estimated useful life | 2 years | ||||
| Maximum | |||||
| Property, Plant and Equipment [Line Items] | |||||
| Estimated useful life | 3 years |