Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2020	Apr. 22, 2020
Document And Entity Information [Abstract]
Substantial Doubt about Going Concern, within One Year [true false]	true
Entity Registrant Name	NeuroMetrix, Inc.
Entity File Number	001-33351
Entity Tax Identification Number	043308180
Entity Address, Address Line One	4B Gill Street
Entity Address, City or Town	Woburn
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01801
City Area Code	781
Local Phone Number	890-9989
Entity Central Index Key	0001289850
Trading Symbol	NURO
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Document Type	10-Q
Document Period End Date	Mar. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		2,736,207
Class of Warrant or Right, Outstanding		41,627