Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
Current Assets:
Cash and cash equivalents	$ 7,081,051	$ 8,055,385
Cash restricted pursuant to letters of credit	52,488	302,488
Current portion of deferred financing costs	968,004	968,004
Prepaid expenses and other current assets	118,202	49,221
Total current assets	8,219,745	9,375,098
Property and Equipment, at cost:
Computer equipment	323,488	323,488
Office and laboratory equipment (including assets under capitalized leases)	728,152	728,152
Furniture and fixtures	755,444	755,444
Manufacturing equipment	111,980	111,980
Leasehold improvements	825,589	825,589
Property and equipment, at cost	2,744,653	2,744,653
Less-Accumulated depreciation and amortization	(1,348,746)	(1,248,846)
Net property and equipment (including assets under capitalized leases)	1,395,907	1,495,807
Other Assets:
Restricted cash	10,490	10,490
Intangible assets, net of accumulated amortization	9,625,000	9,625,000
Deferred financing costs	2,339,323	2,581,324
Other assets	1,576	1,576
Total other assets	11,976,389	12,218,390
Total assets	21,592,041	23,089,295
Current Liabilities:
Accounts payable	704,240	1,036,320
Deferred revenue from licensing arrangements, current portion	76,428	76,428
Current portion of capital lease obligation	689	1,361
Derivative warrant liability	979,155	1,119,155
Accrued expenses and other current liabilities	824,712	1,411,107
Total current liabilities	2,585,224	3,644,371
Capital lease obligation, net of current portion	57,321	76,428
Note payable, net of discount	2,642,545	3,720,799
Deferred revenue from licensing arrangements, net of current portion	57,321	76,428
Total liabilities	2,642,545	3,720,799
Convertible Preferred Stock:
Series C, $0.01 par value, authorized 10,000 shares, issued and outstanding 1,000 shares at March 31, 2014 and December 31, 2013	10	10
Series D, $0.01 par value, authorized 3,600,000 shares, issued and outstanding 1,000,000 shares at March 31, 2014 and December 31, 2013(preference in liquidation of $1,000,000)	10,000	10,000
Series E, $0.01 par value, authorized 1,748,613 shares, issued and outstanding 1,748,613 shares at March 31, 2014 and December 31, 2013	17,486	17,486
Common stock, $0.01 par value, authorized 150,000,000 shares, issued and outstanding 11,967,414 and 11,776,578 shares at March 31, 2014 and December 31, 2013, respectively	119,672	117,764
Additional paid-in capital	133,044,781	132,192,648
Common stock subscription	1,500,000
Accumulated deficit	(115,742,453)	(112,969,412)
Total stockholders' equity	18,949,496	19,368,496
Total liabilities and stockholders' equity	$ 21,592,041	$ 23,089,295