Condensed Consolidated Balance Sheets (USD $)	Sep. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 1,583,819	$ 1,167,980
Grant funds receivable	248,535	183,515
Prepaid expenses and other current assets	46,912	66,508
Total current assets	1,879,266	1,418,003
Property and equipment, net of accumulated depreciation and amortization of $411,374 and $356,084 at September 30, 2012 and December 31, 2011, respectively	120,916	176,206
Other assets:
Licenses, net of accumulated amortization of $233,875 and $208,933 at September 30, 2012 and December 31, 2011, respectively	24,981	39,923
Deposits and other assets	11,010	11,010
Total other assets	35,991	50,933
Total assets	2,036,173	1,645,142
Current liabilities:
Accounts payable	69,363	138,339
Accrued expenses	102,372	125,869
Amounts payable to Emory University (a related party)	166,176	677,327
Total current liabilities	337,911	941,535
Commitments (Note 4)
Stockholders’ equity:
Preferred stock, $0.01 par value, 10,000,000 shares authorized; Series A Convertible Preferred Stock, $1,000 stated value; 788 and -0- shares issued and outstanding at September 30, 2012 and December 31, 2011, respectively	312,196
Common stock, $0.001 par value, 40,000,000 shares authorized; 18,733,277 and 16,442,611 shares issued and outstanding at September 30, 2012 and December 31, 2011, respectively	18,733	16,443
Additional paid-in capital	25,524,390	23,319,166
Deficit accumulated during the development stage	(24,157,057)	(22,632,002)
Total stockholders’ equity	1,698,262	703,607
Total liabilities and stockholders’ equity	$ 2,036,173	$ 1,645,142