Consolidated Balance Sheets (USD $)	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 4,209,949	$ 5,856,242
Contracts and grants receivable	1,338,043	867,086
Taxes receivable		750,356
Prepaid expenses	205,507	135,391
Total current assets	5,753,499	7,609,075
Office furniture and equipment, net	53,229	23,868
Intangible assets, net	466,214	632,512
Total assets	6,272,942	8,265,455
Current liabilities:
Accounts payable	3,059,325	1,520,290
Warrant liability	7,429,460	8,281,247
Accrued compensation	59,983	233,739
Total current liabilities	10,548,768	10,035,276
Shareholders' equity deficiency:
Preferred stock; 350,000 shares authorized; none issued or outstanding
Common stock, $.001 par value; 50,000,000 shares authorized; 22,050,038 shares and 19,626,439 shares issued and outstanding at September 30, 2014 and December 31, 2013, respectively	22,050	19,626
Additional paid-in capital	136,671,281	130,549,930
Accumulated deficit	(140,969,157)	(132,339,377)
Total shareholders' deficiency	(4,275,826)	(1,769,821)
Total liabilities and shareholders' deficiency	$ 6,272,942	$ 8,265,455