Commitments and Contingencies - Section B (Details) - USD ($)				5 Months Ended	12 Months Ended
	Mar. 16, 2017	Nov. 10, 2016	Nov. 19, 2015	Dec. 31, 2017	Jul. 31, 2017	Jul. 31, 2016
Other Commitments [Line Items]
Stock newly-issued during the period (in shares)						15,715
Letter of Intent
Other Commitments [Line Items]
Stock newly-issued during the period (in shares)		14,327	14,327	0
Stock issued during the period	$ 83,300	$ 85,100	$ 120,300	$ 0	$ 83,300
Additional stock issued during the period, upon milestones (in shares)	10,745		92,634
Shares issued (in shares)						3,582
Obligatory stock issuance period	1 year
Share price of stock issued (in dollars per share)	$ 7.75