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v3.19.1

Critical Accounting Policies (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, net | $ 4,493,582 | $ 4,760,145
Minimum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Useful life | 2 years |
Maximum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Useful life | 18 years |
Patents |  |
Finite-Lived Intangible Assets [Line Items] |  |
Useful life | 17 years |
Patents | Minimum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Useful life | 8 years |
Patents | Maximum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Useful life | 17 years |

X
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