Quarterly report pursuant to Section 13 or 15(d)

Note 2 - Basis of Presentation and Summary of Significant Accounting Policies - Carrying Values and Estimated Fair Values of Outstanding Notes (Details)

v2.4.1.9
Note 2 - Basis of Presentation and Summary of Significant Accounting Policies - Carrying Values and Estimated Fair Values of Outstanding Notes (Details) (USD $)
Mar. 31, 2015
Senior Notes [Member]  
Carrying Values $ 4,562,416us-gaap_NotesPayable
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
Estimated Fair Value 4,562,416us-gaap_NotesPayableFairValueDisclosure
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
2014 Junior Secured Notes Payable [Member]  
Carrying Values 3,382,150us-gaap_NotesPayable
/ us-gaap_LongtermDebtTypeAxis
= mric_JuniorSecuredNotesPayable2014Member
Estimated Fair Value 3,733,375us-gaap_NotesPayableFairValueDisclosure
/ us-gaap_LongtermDebtTypeAxis
= mric_JuniorSecuredNotesPayable2014Member
2010 Junior Secured Notes Payable [Member]  
Carrying Values 814,217us-gaap_NotesPayable
/ us-gaap_LongtermDebtTypeAxis
= mric_JuniorSecuredNotesPayable2010Member
Estimated Fair Value $ 2,362,324us-gaap_NotesPayableFairValueDisclosure
/ us-gaap_LongtermDebtTypeAxis
= mric_JuniorSecuredNotesPayable2010Member