Property and Equipment (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 9,836,031	$ 7,627,832
Less: accumulated depreciation and amortization	(7,529,752)	(6,012,609)
Total	2,306,279	1,615,223
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	288,536	241,876
Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,509,464	811,948
Software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	7,582,181	6,132,626
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 455,850	$ 441,382

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
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