Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Series B Convertible Preferred Stock [Member]
Stockholders’ equity:
Convertible preferred stock, value	$ 76,095	$ 76,095
Series C Convertible Preferred Stock [Member]
Stockholders’ equity:
Convertible preferred stock, value	983,941
Cash and cash equivalents	$ 1,821,037	$ 1,101,651
Grant funds receivable		79,341
Prepaid expenses and other current assets	$ 75,276	44,503
Total current assets	1,896,313	1,225,495
Property and equipment, net	90,842	96,693
Deposits	11,010	11,010
Total assets	1,998,165	1,333,198
Accounts payable	42,492	55,616
Accrued expenses	5,000	52,490
Amounts payable to Emory University (a related party)(Note 11)	70,729	78,917
Total current liabilities	$ 118,221	$ 187,023
Commitments (Note 6)
Issued and outstanding shares - 31,950,813 at March 31, 2015 and December 31, 2014	$ 31,951	$ 31,951
Additional paid-in capital	32,570,153	30,823,769
Accumulated deficit	(31,782,196)	(29,785,640)
Total stockholders' equity	1,879,944	1,146,175
Total liabilities and stockholders' equity	$ 1,998,165	$ 1,333,198

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).