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Property and Equipment (Schedule of Property and Equipment) (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 3,164,394 $ 3,033,522
Less: accumulated depreciation and amortization (2,699,940) (2,497,072)
Total property and equipment, net 464,454 536,450
Computer Equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 933,752 839,563
Computer Equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Property and equipment, useful life 3 years  
Computer Equipment | Maximum    
Property, Plant and Equipment [Line Items]    
Property and equipment, useful life 5 years  
Office Equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 355,456 332,126
Office Equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Property and equipment, useful life 3 years  
Office Equipment | Maximum    
Property, Plant and Equipment [Line Items]    
Property and equipment, useful life 15 years  
Furniture and Fixtures    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 618,808 618,808
Furniture and Fixtures | Minimum    
Property, Plant and Equipment [Line Items]    
Property and equipment, useful life 5 years  
Furniture and Fixtures | Maximum    
Property, Plant and Equipment [Line Items]    
Property and equipment, useful life 15 years  
Leasehold Improvements    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 1,256,378 $ 1,243,025
Property and equipment, useful life (Textual) 3 – 15 years, or remaining lease term  
Leasehold Improvements | Minimum    
Property, Plant and Equipment [Line Items]    
Property and equipment, useful life 3 years  
Leasehold Improvements | Maximum    
Property, Plant and Equipment [Line Items]    
Property and equipment, useful life 15 years