Document And Entity Information - USD ($)	12 Months Ended
	Sep. 30, 2021	Dec. 13, 2021	Mar. 31, 2021
Document Information Line Items
Entity Registrant Name	NEUROONE MEDICAL TECHNOLOGIES Corp
Trading Symbol	NMTC
Document Type	10-K
Current Fiscal Year End Date	--09-30
Entity Common Stock, Shares Outstanding		16,187,722
Entity Public Float			$ 82,500,000
Amendment Flag	false
Entity Central Index Key	0001500198
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	Sep. 30, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Document Annual Report	true
Document Transition Report	false
Entity File Number	001-40439
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	27-0863354
Entity Address, Address Line One	7599 Anagram Dr.
Entity Address, City or Town	Eden Prairie
Entity Address, State or Province	MN
Entity Address, Postal Zip Code	55344
Title of 12(b) Security	Common Stock, $0.001 par value per share
Security Exchange Name	NASDAQ
Entity Interactive Data Current	Yes
City Area Code	952
Local Phone Number	426-1383