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Basis of Presentation (Details) (USD $)
3 Months Ended 12 Months Ended
Sep. 27, 2013
Jun. 30, 2013
Revision of Prior Period Financial Statements [Abstract]    
Impact of errors correction on earnings $ 437,000us-gaap_QuantifyingMisstatementInCurrentYearFinancialStatementsAmount  
Impact of errors correction on earnings net of tax attributable to parent 69,000twin_QuantifyingMisstatementInCurrentYearFinancialStatementsAmountNetOfTaxAttributableToParent  
Overstatement of Payroll Accrual [Member]    
Revision of Prior Period Financial Statements [Abstract]    
Impact of errors correction on earnings   337,000us-gaap_QuantifyingMisstatementInCurrentYearFinancialStatementsAmount
/ us-gaap_QuantifyingMisstatementInCurrentYearFinancialStatementsByNatureOfErrorAxis
= twin_OverstatementOfPayrollAccrualMember
Overstatement of Warranty Accrual [Member]    
Revision of Prior Period Financial Statements [Abstract]    
Impact of errors correction on earnings   217,000us-gaap_QuantifyingMisstatementInCurrentYearFinancialStatementsAmount
/ us-gaap_QuantifyingMisstatementInCurrentYearFinancialStatementsByNatureOfErrorAxis
= twin_OverstatementOfWarrantyAccrualMember
Overstatement of Work in Progress Inventory [Member]    
Revision of Prior Period Financial Statements [Abstract]    
Impact of errors correction on earnings   (117,000)us-gaap_QuantifyingMisstatementInCurrentYearFinancialStatementsAmount
/ us-gaap_QuantifyingMisstatementInCurrentYearFinancialStatementsByNatureOfErrorAxis
= twin_OverstatementOfWorkInProgressInventoryMember
Understatement of Deferred tax liabilities [Member]    
Revision of Prior Period Financial Statements [Abstract]    
Impact of errors correction on earnings   $ 285,000us-gaap_QuantifyingMisstatementInCurrentYearFinancialStatementsAmount
/ us-gaap_QuantifyingMisstatementInCurrentYearFinancialStatementsByNatureOfErrorAxis
= twin_UnderstatementOfDeferredTaxLiabilitiesMember