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Summary of Significant Accounting Policies - Schedule of Anti-dilutive Shares (Details) - shares	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive shares (shares)	4,420,108	2,881,113	1,928,626	1,266,619
Unvested restricted incentive shares
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive shares (shares)	708,834	815,632	1,358,317	1,266,619
Incentive share options
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive shares (shares)	3,711,274	2,065,481	570,309	0

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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+ References

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