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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Cash flows from operating activities:    
Net loss $ (2,336,314) $ (1,996,556)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 21,585 21,701
Stock-based compensation expense 525,887 50,516
Changes in assets and liabilities:    
Grant funds receivable 111,213 79,341
Prepaid expenses and other current assets (25,648) (30,773)
Accounts payable and accrued expenses 125,599 (68,802)
Total adjustments 758,636 51,983
Net cash used in operating activities (1,577,678) (1,944,573)
Cash flows from investing activities:    
Purchase of property and equipment (15,850)
Net cash used in investing activities (15,850)
Cash flows from financing activities:    
Net proceeds from sale of preferred stock 2,679,809
Net proceeds from sale of common stock 1,028,426
Net cash provided by financing activities 1,028,426 2,679,809
Net increase (decrease) in cash and cash equivalents (549,252) 719,386
Cash and cash equivalents at beginning of period 1,060,348 1,101,651
Cash and cash equivalents at end of period $ 511,096 $ 1,821,037