Condensed Consolidated Balance Sheets (Current Period Unaudited) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 862,191	$ 2,513,861
Grant funds receivable		140,909
Prepaid expenses and other current assets	64,200	43,569
Total current assets	926,391	2,698,339
Property and equipment, net	113,227	120,227
Total other assets	13,510	21,010
Total assets	1,053,128	2,839,576
Current liabilities:
Accounts payable	82,197	155,943
Accrued expenses	8,279	96,406
Amounts payable to Emory University (a related party)	79,757	60,000
Total current liabilities	170,233	312,349
Commitments (Note 5)
Common stock, $.001 par value: Authorized shares – 75,000,000
Issued and outstanding shares – 25,718,037 and 23,765,180 at September 30, 2014 and December 31, 2013, respectively	25,718	23,765
Additional paid-in capital	28,863,162	28,239,392
Deficit accumulated during the development stage	(28,862,055)	(27,052,085)
Total stockholders’ equity	882,895	2,527,227
Total liabilities and stockholders’ equity	1,053,128	2,839,576
Series A Convertible Preferred Stock [Member]
Preferred stock, $.01 par value: Authorized shares – 10,000,000
Series A convertible preferred stock, $1,000 stated value; -0- and 71 shares issued and outstanding at September 30, 2014 and December 31, 2013, respectively		60,586
Series B Convertible Preferred Stock [Member]
Preferred stock, $.01 par value: Authorized shares – 10,000,000
Series A convertible preferred stock, $1,000 stated value; -0- and 71 shares issued and outstanding at September 30, 2014 and December 31, 2013, respectively	$ 856,070	$ 1,255,569