Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
9 Months Ended
Sep. 30, 2019
Nov. 07, 2019
Document And Entity Information    
Entity Registrant Name MRI INTERVENTIONS, INC.  
Entity Central Index Key 0001285550  
Document Type 10-Q  
Document Period End Date Sep. 30, 2019  
Current Fiscal Year End Date --12-31  
Amendment Flag false  
Entity Incorporation, State or Country Code DE  
Title of 12(b) Security Common Stock, $0.01 par value per share  
Trading Symbol MRIC  
Security Exchange Name NYSE  
Entity File Number 001-34822  
Entity Reporting Status Current Yes  
Entity Interactive Data Current Yes  
Entity Small Business true  
Entity Filer Category Non-accelerated Filer  
Entity Emerging Growth Company false  
Entity Common Stock, Shares Outstanding   15,205,867
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2019