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Basis of Presentation (Details Textual) (USD $)
1 Months Ended 6 Months Ended
Oct. 19, 2011
May 31, 2010
Dec. 31, 2014
Laboratory and Forensic Safety Products Business [Member]      
Basis of Presentation, Organization and Business and Summary of Significant Accounting Policies [Line Items]      
Proceeds from Sales of Business, Affiliate and Productive Assets $ 1,500,000us-gaap_ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= mson_LaboratoryAndForensicSafetyProductsBusinessMember
   
Sale of Business Potential Additional Payment 500,000mson_SaleOfBusinessPotentialAdditionalPayment
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= mson_LaboratoryAndForensicSafetyProductsBusinessMember
   
Sale of Business Potential Additional Payment Determination Basis based upon 30% of net sales in excess of $2.0 million for each of the three years following the closing (the earn-out).    
High Intensity Focused Ultrasound Technology [Member]      
Basis of Presentation, Organization and Business and Summary of Significant Accounting Policies [Line Items]      
Proceeds from Sales of Intangible Assets   5,800,000us-gaap_ProceedsFromSaleOfIntangibleAssets
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= mson_HighIntensityFocusedUltrasoundTechnologyMember
 
Sale of Intangible Assets Percentage of Gross Revenue Received as Earn Out Up to First Benchmark   7.00%mson_SaleOfIntangibleAssetsPercentageOfGrossRevenueReceivedAsEarnOutUpToFirstBenchmark
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= mson_HighIntensityFocusedUltrasoundTechnologyMember
 
Proceeds from Sale of Intangible Assets First Benchmark   3,000,000mson_ProceedsFromSaleOfIntangibleAssetsFirstBenchmark
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= mson_HighIntensityFocusedUltrasoundTechnologyMember
 
Sale of Intangible Assets Percentage of Gross Revenue Received as Earn Out Up to Second Benchmark   5.00%mson_SaleOfIntangibleAssetsPercentageOfGrossRevenueReceivedAsEarnOutUpToSecondBenchmark
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= mson_HighIntensityFocusedUltrasoundTechnologyMember
 
Proceeds from Sale of Intangible Assets Second Benchmark   5,800,000mson_ProceedsFromSaleOfIntangibleAssetsSecondBenchmark
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= mson_HighIntensityFocusedUltrasoundTechnologyMember
 
Payment Sale Of Intangible Assets Description   Commencing 90 days after each December 31st and beginning December 31, 2011 the payments will be the greater of (a) $250,000 or (b) 7% of gross revenues received up to the time the Company has received the first $3 million and thereafter 5% of gross revenues up to the $5.8 million.  
Payment Sale Of Intangible Assets     $ 754,788mson_PaymentSaleOfIntangibleAssets
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= mson_HighIntensityFocusedUltrasoundTechnologyMember
Fibra Sonics Ny Inc [Member]      
Basis of Presentation, Organization and Business and Summary of Significant Accounting Policies [Line Items]      
Noncontrolling Interest, Ownership Percentage by Parent     100.00%us-gaap_MinorityInterestOwnershipPercentageByParent
/ dei_LegalEntityAxis
= mson_FibraSonicsNyIncMember