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Subsequent Event (Details) - USD ($) | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Nov. 16, 2015
--- | --- | --- | --- | ---
Subsidiary or Equity Method Investee [Line Items] |  |  |  |
Cash | $ 5,456,778 | $ 7,378,920 | $ 674,515 |
Total current assets | 10,056,660 | 7,910,963 |  |
Total assets | 12,914,688 | 9,102,093 |  |
Total current liabilities | 469,232 | 282,293 |  |
Total liabilities | 469,232 | 282,293 |  |
Total shareholder's equity | 12,445,456 | $ 8,819,800 | $ 818,753 |
Pro Forma as Adjusted [Member] |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |
Cash | 10,922,640 |  |  |
Total current assets | 13,117,942 |  |  |
Total assets | 16,575,970 |  |  |
Total current liabilities | 469,232 |  |  |
Total liabilities | 469,232 |  |  |
Total shareholder's equity | 16,106,738 |  |  |
Offering [Member] |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |
Cash | 5,465,862 |  |  |
Total current assets | 3,061,282 |  |  |
Total assets | 3,661,282 |  |  |
Total current liabilities |  |  |  |
Total liabilities |  |  |  |
Total shareholder's equity | $ 3,661,282 |  |  |

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