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Property and Equipment (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 13,339,643 $ 11,542,213
Less: accumulated depreciation and amortization (11,534,082) (10,582,738)
Total 1,805,561 959,475
Furniture and fixtures    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 230,637 67,341
Equipment    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 2,815,748 2,585,659
Software    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 9,856,947 8,822,310
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 436,311 $ 66,903