Condensed Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net loss	$ (7,968,705)	$ (3,983,604)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation	671,927	252,374
Depreciation	9,548	6,224
Changes in operating assets and liabilities
Prepaid expenses and other current assets	296,283	55,458
Accounts payable	(972,662)	229,662
Accrued expenses	(1,787,310)	215,155
Other non-current assets		(2,500)
Net cash used in operating activities	(9,750,919)	(3,227,231)
Cash flows from investing activities:
Purchase of property and equipment	(88,938)	(9,752)
Net cash used in investing activities	(88,938)	(9,752)
Cash flows from financing activities:
Costs associated with the issuance of common stock		(38,747)
Net cash used in financing activities		(38,747)
Net decrease in cash and cash equivalents	(9,839,857)	(3,275,730)
Cash and cash equivalents, beginning of period	41,671,284	15,644,355
Cash and cash equivalents, end of period	$ 31,831,427	$ 12,368,625