General form of registration statement for all companies including face-amount certificate companies

Document And Entity Information

v2.4.0.6
Document And Entity Information (USD $)
12 Months Ended
Dec. 31, 2012
Mar. 01, 2013
Jun. 30, 2012
Document and Entity Information [Abstract]      
Entity Registrant Name MRI INTERVENTIONS, INC.    
Document Type S-1    
Current Fiscal Year End Date --12-31    
Entity Common Stock, Shares Outstanding   57,320,447  
Entity Public Float     $ 73,951,613
Amendment Flag true    
Amendment Description Amendment No.1 to Form S-1.    
Entity Central Index Key 0001285550    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Smaller Reporting Company    
Entity Well-known Seasoned Issuer No    
Document Period End Date Dec. 31, 2012    
Document Fiscal Year Focus 2012    
Document Fiscal Period Focus FY