Property and Equipment (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 12,222,962		$ 12,222,962		$ 11,542,213
Less: accumulated depreciation and amortization	(11,021,104)		(11,021,104)		(10,582,738)
Total	1,201,858		1,201,858		959,475
Depreciation expense	214,046	$ 243,335	386,428	$ 499,307
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	69,940		69,940		67,341
Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,759,885		2,759,885		2,585,659
Software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	9,298,499		9,298,499		8,822,310
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 94,638		$ 94,638		$ 66,903