Prepaid Expenses and Other Current Assets (Details) - USD ($)	1 Months Ended	5 Months Ended	12 Months Ended
	Aug. 31, 2017	Dec. 31, 2017	Dec. 31, 2018	Jul. 31, 2017
Long-term Purchase Commitment [Line Items]
Prepaid expenses and other current assets		$ 733,328	$ 267,623	$ 164,887
Prepaid expense			194,000
Payments for prepaid research and development supplies		$ 100,000
Research and Development Arrangement
Long-term Purchase Commitment [Line Items]
Payments to acquire in-process research and development	$ 400,000		74,000
Supplies expense			$ 25,000