Property and Equipment (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 11,436,498		$ 11,436,498		$ 11,383,297
Less: accumulated depreciation and amortization	(9,867,993)		(9,867,993)		(9,259,625)
Total	1,568,505		1,568,505		2,123,672
Depreciation expense	431,585	$ 447,790	873,426	$ 885,975
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	293,152		293,152		293,152
Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,004,022		1,004,022		1,527,054
Capitalized internal use and purchased software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	9,718,308		9,718,308		9,142,075
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 421,016		$ 421,016		$ 421,016