Property and Equipment (Details) (USD $)	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 10,402,878		$ 11,261,906
Less: accumulated depreciation and amortization	(8,446,159)		(9,151,135)
Total	1,956,719		2,110,771
Depreciation expense	705,467	329,849
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	2,690,405		2,473,813
Software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	7,551,077		8,018,509
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 94,055		$ 348,159

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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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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- Definition

Gross amount of long-lived 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, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived 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, furniture and fixtures, and computer equipment.

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