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Property and Equipment - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Property Plant And Equipment [Line Items]        
Depreciation expense $ 107,012 $ 118,911 $ 222,459 $ 236,357
Property, Plant and Equipment, Other Types        
Property Plant And Equipment [Line Items]        
Property, Plant and Equipment, Useful Life     3 years  
Minimum | Tenant Improvement        
Property Plant And Equipment [Line Items]        
Property, Plant and Equipment, Useful Life     6 years  
Maximum | Tenant Improvement        
Property Plant And Equipment [Line Items]        
Property, Plant and Equipment, Useful Life     10 years