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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Cash flows from operating activities:    
Net loss $ (1,653,979) $ (2,336,314)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 20,694 21,585
Stock-based compensation expense 43,535 525,887
Changes in assets and liabilities:    
Grant funds receivable (61,821) 111,213
Prepaid expenses and other current assets 49,855 (25,648)
Accounts payable and accrued expenses 361,695 125,599
Total adjustments 413,958 758,636
Net cash used in operating activities (1,240,021) (1,577,678)
Cash flows from investing activities:    
Purchase of property and equipment (4,350)
Net cash used in investing activities (4,350)
Cash flows from financing activities:    
Net proceeds from sale of preferred stock 980,000
Net proceeds from sale of common stock 154,167 1,028,426
Net cash provided by financing activities 1,134,167 1,028,426
Net decrease in cash and cash equivalents (110,204) (549,252)
Cash and cash equivalents at beginning of period 454,030 1,060,348
Cash and cash equivalents at end of period $ 343,826 $ 511,096