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Property and Equipment (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 14,534,665 $ 12,530,833
Less accumulated depreciation (7,385,714) (7,070,028)
Property and equipment, net $ 7,148,951 5,460,805
Minimum    
Property, Plant and Equipment [Line Items]    
Property and equipment useful life 3 years  
Maximum    
Property, Plant and Equipment [Line Items]    
Property and equipment useful life 25 years  
Land    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 1,122,582 1,107,582
Office buildings and improvements (25 years)    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 3,495,338 3,416,096
Property and equipment useful life 25 years  
Office buildings and improvements (25 years) | Minimum    
Property, Plant and Equipment [Line Items]    
Property and equipment useful life 3 years  
Office buildings and improvements (25 years) | Maximum    
Property, Plant and Equipment [Line Items]    
Property and equipment useful life 25 years  
Furniture, fixtures and equipment (3 to 10 years)    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 8,948,535 7,159,250
Furniture, fixtures and equipment (3 to 10 years) | Minimum    
Property, Plant and Equipment [Line Items]    
Property and equipment useful life 3 years  
Furniture, fixtures and equipment (3 to 10 years) | Maximum    
Property, Plant and Equipment [Line Items]    
Property and equipment useful life 10 years  
Automobiles (3 years)    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 968,210 $ 847,905
Property and equipment useful life 3 years