Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net loss	$ (14,194,431)	$ (6,699,562)
Adjustments to reconcile net loss to net cash used in operating activities:
Non-cash interest expense	242,982	0
Share-based compensation	418,093	63,803
Depreciation	3,997	3,532
Loss on disposal of property and equipment	2,078	0
Write-off of deferred financing costs	1,901	67,995
Changes in operating assets and liabilities
Prepaid expenses	(336,834)	(430,571)
Accounts payable	(287,538)	140,011
Accrued expenses	68,144	(102,990)
Other noncurrent assets	(13,648)	0
Net cash used in operating activities	(14,095,256)	(6,957,782)
Cash flows from investing activities:
Cash acquired in Merger, net of payment in lieu of fractional shares	1,030,123	0
Purchase of property and equipment	(62,842)	(1,582)
Net cash provided by (used in) investing activities	967,281	(1,582)
Cash flows from financing activities:
Proceeds from issuance of common stock	21,506,842	0
Proceeds from issuance of Series B Convertible Redeemable Preferred stock, net	0	7,994,837
Deferred financing costs	(68,530)	0
Proceeds from convertible notes payable	5,500,000	0
Net cash provided by financing activities	26,938,312	7,994,837
Net increase in cash and cash equivalents	13,810,337	1,035,473
Cash and cash equivalents, beginning of the year	1,834,018	798,545
Cash and cash equivalents, end of the year	15,644,355	1,834,018
Supplemental cash flow information and non- cash financing transactions:
Cash paid during the year for interest	0	720
Accretion of issuance costs on Series A Convertible Redeemable Preferred stock	51,943	14,841
Accretion of issuance costs on Series B Convertible Redeemable Preferred stock	127,780	27,382
Conversion of Series A Convertible Redeemable Preferred stock to common stock	4,166,164	0
Conversion of Series B Convertible Redeemable Preferred stock to common stock	8,149,999	0
Conversion of convertible notes payable and accrued interest to common stock	5,674,452	0
Issuance of common stock in Merger (Note 1)	$ 6,978,916	$ 0