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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