Document And Entity Information - shares
6 Months Ended
Jun. 30, 2019
Jul. 12, 2019
Document And Entity Information [Abstract]    
Entity Registrant Name NeuroMetrix, Inc.  
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 Jun. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   9,781,755
Class of Warrant or Right, Outstanding   454,781