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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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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Property and Equipment (Details) (USD $)											3 Months Ended
Property and Equipment (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 Computer equipment	Dec. 31, 2012 Computer equipment	Mar. 31, 2013 Software	Dec. 31, 2012 Software	Mar. 31, 2013 Leasehold improvements	Dec. 31, 2012 Leasehold improvements	Mar. 31, 2013 Office furniture and equipment	Dec. 31, 2012 Office furniture and equipment	Mar. 31, 2013 Minimum Computer equipment	Mar. 31, 2013 Minimum Software	Mar. 31, 2013 Minimum Leasehold improvements	Mar. 31, 2013 Minimum Office furniture and equipment	Mar. 31, 2013 Maximum Computer equipment	Mar. 31, 2013 Maximum Software	Mar. 31, 2013 Maximum Leasehold improvements	Mar. 31, 2013 Maximum Office furniture and equipment
Property and equipment
Estimated Useful Life (Years)											2 years	3 years	1 year	5 years	7 years	5 years	5 years	7 years
Property and equipment	$ 2,305,700	$ 2,305,700	$ 574,097	$ 574,096	$ 104,500	$ 104,500	$ 174,429	$ 174,429	$ 1,452,674	$ 1,452,675
Less accumulated depreciation and amortization	(2,204,400)	(2,170,488)
Property equipment Net	$ 101,300	$ 135,212