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

Note 4 - Property and Equipment (Details) - Property and Equipment

v2.4.1.9
Note 4 - Property and Equipment (Details) - Property and Equipment (USD $)
Sep. 30, 2014
Dec. 31, 2013
Dec. 31, 2012
Property, Plant and Equipment [Line Items]      
Property and equipment, gross   $ 2,399,037us-gaap_PropertyPlantAndEquipmentGross $ 2,486,144us-gaap_PropertyPlantAndEquipmentGross
Less accumulated depreciation and amortization   (1,495,877)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (1,199,029)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Total property and equipment, net 559,380us-gaap_PropertyPlantAndEquipmentNet 903,160us-gaap_PropertyPlantAndEquipmentNet 1,287,115us-gaap_PropertyPlantAndEquipmentNet
Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross   1,081,056us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_EquipmentMember
1,044,969us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_EquipmentMember
Furniture and Fixtures [Member]      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross   106,054us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_FurnitureAndFixturesMember
105,376us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_FurnitureAndFixturesMember
Leasehold Improvements [Member]      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross   157,236us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember
157,236us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember
Computer Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross   134,285us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ComputerEquipmentMember
114,786us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ComputerEquipmentMember
Loaned Systems [Member]      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross   $ 920,406us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= mric_LoanedSystemsMember
$ 1,063,777us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= mric_LoanedSystemsMember