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Summary of Significant Accounting Policies (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Concentration of Credit Risk      
Expense for bad debts $ 406,000us-gaap_ProvisionForDoubtfulAccounts $ 457,000us-gaap_ProvisionForDoubtfulAccounts $ (836,000)us-gaap_ProvisionForDoubtfulAccounts
Inventories      
Percentage of LIFO Inventory 30.00%us-gaap_PercentageOfLIFOInventory    
Cost valuation of inventory if FIFO had been used exclusively 6,800,000mye_InventoryAdjustmentsIfFifoMethodInUse 8,100,000mye_InventoryAdjustmentsIfFifoMethodInUse 8,700,000mye_InventoryAdjustmentsIfFifoMethodInUse
Liquidation of LIFO inventories decreased cost of sales and increased income before taxes 400,000us-gaap_EffectOfLIFOInventoryLiquidationOnIncome 100,000us-gaap_EffectOfLIFOInventoryLiquidationOnIncome 400,000us-gaap_EffectOfLIFOInventoryLiquidationOnIncome
Shipping and Handling      
Shipping and handling expenses 19,400,000us-gaap_ShippingHandlingAndTransportationCosts 17,100,000us-gaap_ShippingHandlingAndTransportationCosts 16,600,000us-gaap_ShippingHandlingAndTransportationCosts
Cash and Cash Equivalents      
Accrued capital expenditures excluded from investing activities 200,000us-gaap_CapitalExpendituresIncurredButNotYetPaid 500,000us-gaap_CapitalExpendituresIncurredButNotYetPaid 100,000us-gaap_CapitalExpendituresIncurredButNotYetPaid
Cash proceeds from sale of receivables 8,800,000us-gaap_ProceedsFromSaleAndCollectionOfReceivables    
Receivable sold under factoring agreement 9,100,000mye_AccountReceivableSoldUnderFactoringAgreement    
BRAZIL | Sales [Member]      
Concentration of Credit Risk      
Concentration risk percentage 7.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_StatementGeographicalAxis
= country_BR
8.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_StatementGeographicalAxis
= country_BR
5.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_StatementGeographicalAxis
= country_BR
BRAZIL | Sales [Member] | Customer Concentration Risk [Member]      
Concentration of Credit Risk      
Concentration risk percentage 8.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_StatementGeographicalAxis
= country_BR
   
Canada [Member] | Sales [Member]      
Concentration of Credit Risk      
Concentration risk percentage 4.20%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_StatementGeographicalAxis
= country_CA
3.30%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_StatementGeographicalAxis
= country_CA
4.40%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_StatementGeographicalAxis
= country_CA
Canada [Member] | Sales [Member] | Customer Concentration Risk [Member]      
Concentration of Credit Risk      
Concentration risk percentage 6.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_StatementGeographicalAxis
= country_CA
   
Senior Notes [Member] | Fair Value [Member]      
Fair Value Measurement      
Senior Notes 106,800,000us-gaap_NotesPayableFairValueDisclosure
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
   
Senior Notes [Member] | Carrying Value [Member]      
Fair Value Measurement      
Senior Notes 100,000,000us-gaap_NotesPayableFairValueDisclosure
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
   
Customer 1 [Member] | Sales [Member] | Customer Concentration Risk [Member]      
Concentration of Credit Risk      
Concentration risk percentage 5.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= mye_Customer1Member
   
Minimum [Member] | Customer 2 [Member] | Sales [Member] | Customer Concentration Risk [Member]      
Concentration of Credit Risk      
Concentration risk percentage 3.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= mye_Customer2Member
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
   
Interest Expense [Member]      
Cash and Cash Equivalents      
Cost and expense relate to sale of receivable $ 300,000mye_AccountReceivableCostandExpenseRelatetoSale
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_InterestExpenseMember