Consolidated Statements of Cash Flows (Unaudited) (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash Flows From Operating Activities:
Net loss	$ (10,329,722)	$ (6,140,114)
Depreciation and amortization	188,574	43,757
Share-based compensation, net	768,634	436,056
Fair value of common stock and warrants issued for services	89,970	50,299
Gain on revaluation of derivative warrant liability	(4,675,986)	(601,281)
Amortization of discount on note payable	2,879,166
Amortization of non-cash deferred financing costs	484,002
Non-cash loss on disposals of assets		21,272
Accounts receivable		33,513
Prepaid expenses and other current assets	(134,695)	55,799
Deposits and other assets	(500)	9,749
Accounts payable	(54,643)	318,374
Deferred revenue from licensing arrangements	(45,114)	(61,854)
Accrued expenses and other liabilities	188,081	67,147
Net cash used in operating activities	(10,642,233)	(5,767,283)
Cash Flows from Investing Activities:
Purchase of furniture, equipment and leasehold improvements	(210,031)	(310,895)
Increase in restricted cash	(250,000)	(157,463)
Net cash used in investing activities	(460,031)	(468,358)
Cash Flows From Financing Activities:
Proceeds from issuance of common stock and warrants, net of expenses	21,964,575	6,667
Repayment of Platinum note payable	(3,000,000)
Principal payments for capital lease obligations	(1,232)	(1,115)
Proceeds from exercise of warrants		151,680
Proceeds from exercise of stock options		194,180
Net cash provided by financing activities	18,963,343	351,412
Net increase (decrease) in cash and cash equivalents	7,861,079	(5,884,229)
Cash and cash equivalents, beginning of period	3,747,210	8,995,571
Cash and cash equivalents, end of period	11,608,289	3,111,342
Supplemental Disclosure of Cash Flow Information and Non Cash Financing Transactions:
Cash paid for interest	113,535	284
Reduction in fair value of common stock issued in connection with settlement agreement		(82,000)
Reclassification of derivative warrant liability to additional paid-in capital		$ 41,520