Property, Plant and Equipment - Depreciation (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
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| Property, Plant and Equipment [Abstract] | ||||
| Depreciation and amortization expense | $ 164,356 | $ 402,336 | $ 506,218 | $ 830,416 |
| X | ||||||||||
- Definition Depreciation, Depletion and Amortization, Property, Plant and Equipment No definition available.
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| X | ||||||||||
- References No definition available.
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