Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash Flows From Operating Activities:
Net loss	$ (2,773,041)	$ (6,988,325)
Depreciation and amortization	99,900	90,486
Share-based compensation, net	345,637	362,956
Fair value of common stock and warrants issued for services	8,404	92,745
Gain on revaluation of derivative warrant liability	(140,000)	(1,680,986)
Amortization of discount on note payable		2,879,166
Amortization of non-cash deferred financing costs	242,001	242,001
Prepaid expenses and other current assets	(68,981)	(155,545)
Accounts payable	(332,080)	(819,925)
Deferred revenue from licensing arrangements	(19,107)	(22,557)
Accrued expenses and other liabilities	(586,395)	178,089
Net cash used in operating activities	(3,223,662)	(5,821,895)
Cash Flows from Investing Activities:
Purchase of furniture, equipment and leasehold improvements		(130,555)
Decrease (increase) in restricted cash	250,000	(250,000)
Net cash used in investing activities	250,000	(380,555)
Cash Flows From Financing Activities:
Proceeds from issuances of Common Stock, and warrants, net of expenses	500,000	10,626,099
Repayment of Montaur note payable		(3,000,000)
Proceeds from Common Stock subscription	1,500,000
Principal payments on capital lease obligations	(672)	(608)
Net cash provided by financing activities	1,999,328	7,625,491
Net increase (decrease) in cash and cash equivalents	(974,334)	1,423,041
Cash and cash equivalents, beginning of period	8,055,385	3,747,210
Cash and cash equivalents, end of period	7,081,051	5,170,251
Supplemental Disclosure of Cash Flow Information and Non Cash Financing Transactions:
Cash paid for interest	$ 1,239	$ 113,458