Annual report pursuant to Section 13 and 15(d)

Note 6 - Notes Payable (Details) - Assumptions Used in Calculating Fair Value of Warrants Issued, Directors

v2.4.1.9
Note 6 - Notes Payable (Details) - Assumptions Used in Calculating Fair Value of Warrants Issued, Directors
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Black-Scholes Valuation Model [Member] | Minimum [Member]    
Note 6 - Notes Payable (Details) - Assumptions Used in Calculating Fair Value of Warrants Issued, Directors [Line Items]    
Expected Volatility 47.50%us-gaap_FairValueAssumptionsExpectedVolatilityRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_ValuationTechniqueAxis
= mric_BlackScholesValuationModelMember 		 
Risk free Interest rates 1.73%us-gaap_FairValueAssumptionsRiskFreeInterestRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_ValuationTechniqueAxis
= mric_BlackScholesValuationModelMember 		 
Black-Scholes Valuation Model [Member] | Maximum [Member]    
Note 6 - Notes Payable (Details) - Assumptions Used in Calculating Fair Value of Warrants Issued, Directors [Line Items]    
Expected Volatility 47.70%us-gaap_FairValueAssumptionsExpectedVolatilityRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_ValuationTechniqueAxis
= mric_BlackScholesValuationModelMember 		 
Risk free Interest rates 1.76%us-gaap_FairValueAssumptionsRiskFreeInterestRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_ValuationTechniqueAxis
= mric_BlackScholesValuationModelMember 		 
Black-Scholes Valuation Model [Member]    
Note 6 - Notes Payable (Details) - Assumptions Used in Calculating Fair Value of Warrants Issued, Directors [Line Items]    
Dividend yield 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate
/ us-gaap_ValuationTechniqueAxis
= mric_BlackScholesValuationModelMember 		 
Expected life (in years) 5 years  
Minimum [Member]    
Note 6 - Notes Payable (Details) - Assumptions Used in Calculating Fair Value of Warrants Issued, Directors [Line Items]    
Expected Volatility 49.40%us-gaap_FairValueAssumptionsExpectedVolatilityRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember 		43.40%us-gaap_FairValueAssumptionsExpectedVolatilityRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Risk free Interest rates 1.73%us-gaap_FairValueAssumptionsRiskFreeInterestRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember 		0.92%us-gaap_FairValueAssumptionsRiskFreeInterestRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Expected life (in years) 5 years 6 months 5 years
Maximum [Member]    
Note 6 - Notes Payable (Details) - Assumptions Used in Calculating Fair Value of Warrants Issued, Directors [Line Items]    
Expected Volatility 51.80%us-gaap_FairValueAssumptionsExpectedVolatilityRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember 		46.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Risk free Interest rates 2.71%us-gaap_FairValueAssumptionsRiskFreeInterestRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember 		2.10%us-gaap_FairValueAssumptionsRiskFreeInterestRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Expected life (in years) 6 years 6 years