Property and Equipment (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 10,702,912	$ 11,261,906
Less: accumulated depreciation and amortization	(9,514,346)	(9,151,135)
Total	1,188,566	2,110,771
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	67,341	421,425
Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,547,686	2,473,813
Software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	8,020,982	8,018,509
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 66,903	$ 348,159