Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net loss	$ (1,376,657)	$ (1,295,455)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	14,467	32,744
Stock-based compensation expense	33,590	51,354
Changes in assets and liabilities:
Grant funds receivable	40,041	140,909
Prepaid expenses and other current assets	4,609	14,408
Accounts payable and accrued expenses	(5,934)	(74,855)
Total adjustments	86,773	164,560
Net cash used in operating activities	(1,289,884)	(1,130,895)
Cash flows from investing activities:
Purchase of property and equipment	(15,850)	(11,164)
Net cash used in investing activities	(15,850)	$ (11,164)
Cash flows from financing activities:
Net proceeds from sale of preferred stock	2,679,809
Net cash provided by financing activities	2,679,809
Net increase (decrease) in cash and cash equivalents	1,374,075	$ (1,142,059)
Cash and cash equivalents at beginning of period	1,101,651	2,513,861
Cash and cash equivalents at end of period	$ 2,475,726	$ 1,371,802