Condensed Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities
Net loss	$ (1,790,309)	$ (1,965,266)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense	310,162	378,959
Change in operating assets and liabilities:
Prepaid expenses and other assets	227,089	142,299
Accounts payable and other current liabilities	(298,837)	(482,878)
Net cash used in operating activities	(1,551,895)	(1,926,886)
Financing activities
Proceeds from issuance of common stock, net	21,250	636,432
Net cash provided by financing activities	21,250	636,432
Net decrease in cash and cash equivalents	(1,530,645)	(1,290,454)
Cash and cash equivalents at beginning of period	5,663,833	5,319,004
Cash and cash equivalents at end of period	$ 4,133,188	$ 4,028,550