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Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock (USD $)
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12 Months Ended |
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Dec. 31, 2013
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| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Increase In Common Shares Outstanding (in Shares) |
16,397,727mric_ImpactOnLiabilitiesIncreaseInCommonSharesOutstanding
|
| Increase In Common Shares Outstanding (in Shares) |
7,965,000mric_ImpactOnEquityIncreaseInCommonSharesOutstanding
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| Total impact on liabilities and equity (in Shares) |
24,362,727mric_TotalImpactOnLiabilitiesAndEquityIncreaseInCommonSharesOutstanding
|
| Accrued Interest On Converted Notes [Member] | Before Conversions [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
974,311mric_ImpactOnLiabilitiesOfConversionsToCommonStock
/ us-gaap_FairValueByLiabilityClassAxis
= mric_AccruedInterestOnConvertedNotesMember
/ us-gaap_StatementScenarioAxis
= mric_BeforeConversionsMember
|
| Accrued Interest On Converted Notes [Member] | Impact of Conversions [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
(974,311)mric_ImpactOnLiabilitiesOfConversionsToCommonStock
/ us-gaap_FairValueByLiabilityClassAxis
= mric_AccruedInterestOnConvertedNotesMember
/ us-gaap_StatementScenarioAxis
= mric_ImpactOfConversionsMember
|
| Accrued Interest On Converted Notes [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Increase In Common Shares Outstanding (in Shares) |
1,092,559mric_ImpactOnLiabilitiesIncreaseInCommonSharesOutstanding
/ us-gaap_FairValueByLiabilityClassAxis
= mric_AccruedInterestOnConvertedNotesMember
|
| Summer 2011 Notes, Net [Member] | Before Conversions [Member] |
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| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
904,397mric_ImpactOnLiabilitiesOfConversionsToCommonStock
/ us-gaap_FairValueByLiabilityClassAxis
= mric_Summer2011NotesNetMember
/ us-gaap_StatementScenarioAxis
= mric_BeforeConversionsMember
|
| Summer 2011 Notes, Net [Member] | Impact of Conversions [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
(904,397)mric_ImpactOnLiabilitiesOfConversionsToCommonStock
/ us-gaap_FairValueByLiabilityClassAxis
= mric_Summer2011NotesNetMember
/ us-gaap_StatementScenarioAxis
= mric_ImpactOfConversionsMember
|
| Summer 2011 Notes, Net [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Increase In Common Shares Outstanding (in Shares) |
2,183,334mric_ImpactOnLiabilitiesIncreaseInCommonSharesOutstanding
/ us-gaap_FairValueByLiabilityClassAxis
= mric_Summer2011NotesNetMember
|
| March 2010 Notes, Net [Member] | Before Conversions [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
4,057,500mric_ImpactOnLiabilitiesOfConversionsToCommonStock
/ us-gaap_FairValueByLiabilityClassAxis
= mric_March2010NotesNetMember
/ us-gaap_StatementScenarioAxis
= mric_BeforeConversionsMember
|
| March 2010 Notes, Net [Member] | Impact of Conversions [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
(4,057,500)mric_ImpactOnLiabilitiesOfConversionsToCommonStock
/ us-gaap_FairValueByLiabilityClassAxis
= mric_March2010NotesNetMember
/ us-gaap_StatementScenarioAxis
= mric_ImpactOfConversionsMember
|
| March 2010 Notes, Net [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Increase In Common Shares Outstanding (in Shares) |
4,071,000mric_ImpactOnLiabilitiesIncreaseInCommonSharesOutstanding
/ us-gaap_FairValueByLiabilityClassAxis
= mric_March2010NotesNetMember
|
| 2011 Unit Offering Notes, Net [Member] | Before Conversions [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
4,367,482mric_ImpactOnLiabilitiesOfConversionsToCommonStock
/ us-gaap_FairValueByLiabilityClassAxis
= mric_The2011UnitOfferingNotesNetMember
/ us-gaap_StatementScenarioAxis
= mric_BeforeConversionsMember
|
| 2011 Unit Offering Notes, Net [Member] | Impact of Conversions [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
(4,367,482)mric_ImpactOnLiabilitiesOfConversionsToCommonStock
/ us-gaap_FairValueByLiabilityClassAxis
= mric_The2011UnitOfferingNotesNetMember
/ us-gaap_StatementScenarioAxis
= mric_ImpactOfConversionsMember
|
| 2011 Unit Offering Notes, Net [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Increase In Common Shares Outstanding (in Shares) |
9,050,834mric_ImpactOnLiabilitiesIncreaseInCommonSharesOutstanding
/ us-gaap_FairValueByLiabilityClassAxis
= mric_The2011UnitOfferingNotesNetMember
|
| Before Conversions [Member] | Deferred Costs [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Deferred costs |
799,123mric_ImpactOnAssetsOfConversionsToCommonStock
/ us-gaap_FairValueByAssetClassAxis
= mric_DeferredCostsMember
/ us-gaap_StatementScenarioAxis
= mric_BeforeConversionsMember
|
| Before Conversions [Member] | Series A Convertible Preferred Stock [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
7,965,000mric_ImpactOnEquityOfConversionsToCommonStock
/ us-gaap_ShareholdersEquityClassAxis
= mric_SeriesAConvertiblePreferredStockMember
/ us-gaap_StatementScenarioAxis
= mric_BeforeConversionsMember
|
| Before Conversions [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
10,303,690mric_ImpactOnLiabilitiesOfConversionsToCommonStock
/ us-gaap_StatementScenarioAxis
= mric_BeforeConversionsMember
|
| Impact to Balance Sheet |
7,965,000mric_ImpactOnEquityOfConversionsToCommonStock
/ us-gaap_StatementScenarioAxis
= mric_BeforeConversionsMember
|
| Total impact on liabilities and equity |
18,268,690mric_TotalImpactOnLiabilitiesAndEquityOfConversionsToCommonStock
/ us-gaap_StatementScenarioAxis
= mric_BeforeConversionsMember
|
| Impact of Conversions [Member] | Deferred Costs [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Deferred costs |
(799,123)mric_ImpactOnAssetsOfConversionsToCommonStock
/ us-gaap_FairValueByAssetClassAxis
= mric_DeferredCostsMember
/ us-gaap_StatementScenarioAxis
= mric_ImpactOfConversionsMember
|
| Impact of Conversions [Member] | Series A Convertible Preferred Stock [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
(7,965,000)mric_ImpactOnEquityOfConversionsToCommonStock
/ us-gaap_ShareholdersEquityClassAxis
= mric_SeriesAConvertiblePreferredStockMember
/ us-gaap_StatementScenarioAxis
= mric_ImpactOfConversionsMember
|
| Impact of Conversions [Member] | Additional Paid-In Capital and Common Stock [Member] |
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| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
19,345,209mric_ImpactOnEquityOfConversionsToCommonStock
/ us-gaap_ShareholdersEquityClassAxis
= mric_AdditionalPaidInCapitalAndCommonStockMember
/ us-gaap_StatementScenarioAxis
= mric_ImpactOfConversionsMember
|
| Impact of Conversions [Member] | Accumulated Deficit [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
(1,875,642)mric_ImpactOnEquityOfConversionsToCommonStock
/ us-gaap_ShareholdersEquityClassAxis
= mric_AccumulatedDeficitMember
/ us-gaap_StatementScenarioAxis
= mric_ImpactOfConversionsMember
|
| Impact of Conversions [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
(10,303,690)mric_ImpactOnLiabilitiesOfConversionsToCommonStock
/ us-gaap_StatementScenarioAxis
= mric_ImpactOfConversionsMember
|
| Impact to Balance Sheet |
9,504,567mric_ImpactOnEquityOfConversionsToCommonStock
/ us-gaap_StatementScenarioAxis
= mric_ImpactOfConversionsMember
|
| Total impact on liabilities and equity |
(799,123)mric_TotalImpactOnLiabilitiesAndEquityOfConversionsToCommonStock
/ us-gaap_StatementScenarioAxis
= mric_ImpactOfConversionsMember
|
| After Conversions [Member] | Additional Paid-In Capital and Common Stock [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
19,345,209mric_ImpactOnEquityOfConversionsToCommonStock
/ us-gaap_ShareholdersEquityClassAxis
= mric_AdditionalPaidInCapitalAndCommonStockMember
/ us-gaap_StatementScenarioAxis
= mric_AfterConversionsMember
|
| After Conversions [Member] | Accumulated Deficit [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
(1,875,642)mric_ImpactOnEquityOfConversionsToCommonStock
/ us-gaap_ShareholdersEquityClassAxis
= mric_AccumulatedDeficitMember
/ us-gaap_StatementScenarioAxis
= mric_AfterConversionsMember
|
| After Conversions [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Impact to Balance Sheet |
17,469,567mric_ImpactOnEquityOfConversionsToCommonStock
/ us-gaap_StatementScenarioAxis
= mric_AfterConversionsMember
|
| Total impact on liabilities and equity |
17,469,567mric_TotalImpactOnLiabilitiesAndEquityOfConversionsToCommonStock
/ us-gaap_StatementScenarioAxis
= mric_AfterConversionsMember
|
| Series A Convertible Preferred Stock [Member] |
|
| Note 8 - Stockholders' Equity (Details) - Impact to Balance Sheet and to Shares Outstanding of Conversions to Common Stock [Line Items] |
|
| Increase In Common Shares Outstanding (in Shares) |
7,965,000mric_ImpactOnEquityIncreaseInCommonSharesOutstanding
/ us-gaap_ShareholdersEquityClassAxis
= mric_SeriesAConvertiblePreferredStockMember
|