Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash Flows From Operating Activities:
Net loss	$ (15,566,767)	$ (10,405,209)
Depreciation and amortization	288,883	75,772
Share-based compensation, net	908,983	920,251
Fair value of common stock and warrants issued for services	89,970	118,465
Gain on revaluation of derivative warrant liability	(4,605,986)	(201,281)
Amortization of discount on note payable	2,879,166	5,556
Amortization of non-cash deferred financing costs	726,003	80,667
Non-cash loss on disposals of assets		21,272
Non-cash debt financing costs		160,000
Accounts receivable		37,065
Prepaid expenses and other current assets	(51,484)	99,041
Other assets	(1,500)	9,999
Accounts payable	(768,127)	664,190
Deferred revenue from licensing arrangements	(67,671)	(92,781)
Accrued expenses and other liabilities	14,472	637,633
Net cash used in operating activities	(16,154,058)	(7,869,360)
Cash Flows from Investing Activities:
Purchase of furniture, equipment and leasehold improvements	(237,387)	(985,158)
Increase in restricted cash	(250,000)	(157,463)
Net cash used in investing activities	(487,387)	(1,142,621)
Cash Flows From Financing Activities:
Proceeds from issuance of common stock, net of expenses	21,964,575	6,667
Proceeds from Platinum note payable		1,000,000
Repayment of Platinum note payable	(3,000,000)
Principal payments for capital lease obligations	(1,871)	(1,694)
Proceeds from exercise of warrants		212,017
Proceeds from exercise of stock options		195,260
Net cash provided by financing activities	18,962,704	1,412,250
Net increase (decrease) in cash and cash equivalents	2,321,259	(7,599,731)
Cash and cash equivalents, beginning of period	3,747,210	8,995,571
Cash and cash equivalents, end of period	6,068,469	1,395,840
Supplemental Disclosure of Cash Flow Information and Non Cash Financing Transactions:
Cash paid for interest	114,082	408
Reclassification of derivative warrant liability to additional paid-in capital		61,520
Fair value of common stock issued in connection with settlement agreement		208,000
Fair value of Commitment Warrant issued in connection with debt financing		4,840,000
Fair value of Draw Warrant issued for note payable recorded as discount		1,000,000
Fair value of Draw Warrant issued for note payable recorded s debt financing costs		$ 160,000