Fixed Assets (Tables)

12 Months Ended

Dec. 31, 2012

Assets [Abstract]

Schedule of useful lives and balances of fixed assets

The useful lives and balances of fixed assets at December 31, 2012 and 2011 consisted of the following:

	Useful Life	2012			2011
Computer software, computer equipment and office equipment	3 years	$	314,717		$	314,717
Laboratory equipment	5 years		1,225,770			1,220,770
Furniture and fixtures	5 years		40,349			40,349
Leasehold improvements	5 years		303,258			303,258
Website development	3 years		270,678			270,678
Equipment under capital leases	3 to 5 years		22,920			22,920
			2,177,692			2,172,692
Less — Accumulated depreciation and amortization			(2,050,746	)		(1,883,681	)
Total		$	126,946		$	289,011