Property and Equipment (Details) - USD ($)	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 11,164,879		$ 11,383,297
Less: accumulated depreciation and amortization	(9,436,407)		(9,259,625)
Total	1,728,472		2,123,672
Depreciation expense	441,841	$ 438,185
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	293,152		293,152
Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,004,022		1,527,054
Capitalized internal use and purchased software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	9,446,689		9,142,075
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 421,016		$ 421,016

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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