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Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 27, 2014	Jun. 28, 2013	Jun. 27, 2014	Jun. 28, 2013
Net sales	$ 137,133us-gaap_SalesRevenueNet	$ 129,772us-gaap_SalesRevenueNet	$ 340,506us-gaap_SalesRevenueNet	$ 349,146us-gaap_SalesRevenueNet
Cost of sales	81,314us-gaap_CostOfGoodsSold	75,435us-gaap_CostOfGoodsSold	205,912us-gaap_CostOfGoodsSold	206,911us-gaap_CostOfGoodsSold
Gross profit	55,819us-gaap_GrossProfit	54,337us-gaap_GrossProfit	134,594us-gaap_GrossProfit	142,235us-gaap_GrossProfit
Operating expenses:
Marketing and selling	25,535us-gaap_SellingAndMarketingExpense	25,215us-gaap_SellingAndMarketingExpense	68,445us-gaap_SellingAndMarketingExpense	70,309us-gaap_SellingAndMarketingExpense
Administrative management, finance and information systems	8,217us-gaap_GeneralAndAdministrativeExpense	8,999us-gaap_GeneralAndAdministrativeExpense	27,748us-gaap_GeneralAndAdministrativeExpense	29,944us-gaap_GeneralAndAdministrativeExpense
Goodwill and other intangible assets impairment	8,475us-gaap_GoodwillAndIntangibleAssetImpairment		8,475us-gaap_GoodwillAndIntangibleAssetImpairment
Research and development	4,260us-gaap_ResearchAndDevelopmentExpense	3,990us-gaap_ResearchAndDevelopmentExpense	11,956us-gaap_ResearchAndDevelopmentExpense	11,685us-gaap_ResearchAndDevelopmentExpense
Total operating expenses	46,487us-gaap_OperatingExpenses	38,204us-gaap_OperatingExpenses	116,624us-gaap_OperatingExpenses	111,938us-gaap_OperatingExpenses
Operating profit	9,332us-gaap_OperatingIncomeLoss	16,133us-gaap_OperatingIncomeLoss	17,970us-gaap_OperatingIncomeLoss	30,297us-gaap_OperatingIncomeLoss
Interest income	(17)us-gaap_InvestmentIncomeNet	(14)us-gaap_InvestmentIncomeNet	(53)us-gaap_InvestmentIncomeNet	(67)us-gaap_InvestmentIncomeNet
Interest expense	196us-gaap_InterestExpense	186us-gaap_InterestExpense	711us-gaap_InterestExpense	1,110us-gaap_InterestExpense
Other expense (income), net	(952)us-gaap_OtherNonoperatingIncomeExpense	451us-gaap_OtherNonoperatingIncomeExpense	(1,087)us-gaap_OtherNonoperatingIncomeExpense	71us-gaap_OtherNonoperatingIncomeExpense
Income before income taxes	10,105us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	15,510us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	18,399us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	29,183us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Income tax expense	5,407us-gaap_IncomeTaxExpenseBenefit	1,856us-gaap_IncomeTaxExpenseBenefit	8,490us-gaap_IncomeTaxExpenseBenefit	6,345us-gaap_IncomeTaxExpenseBenefit
Net income	$ 4,698us-gaap_NetIncomeLoss	$ 13,654us-gaap_NetIncomeLoss	$ 9,909us-gaap_NetIncomeLoss	$ 22,838us-gaap_NetIncomeLoss
Dilutive stock options and restricted stock units	5us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	5us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	3us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	5us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Weighted average common shares - Dilutive	9,655us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	9,549us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	9,625us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	9,511us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Class A [Member]
Weighted average common shares - Basic:
Weighted average common shares - Basic	8,438us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementScenarioAxis = us-gaap_CommonClassAMember	8,331us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementScenarioAxis = us-gaap_CommonClassAMember	8,410us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementScenarioAxis = us-gaap_CommonClassAMember	8,293us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementScenarioAxis = us-gaap_CommonClassAMember
Net (loss) income per common share - Basic:
Net (loss) income per common share - Basic	$ 0.48us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_CommonClassAMember	$ 1.39us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_CommonClassAMember	$ 1.01us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_CommonClassAMember	$ 2.34us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_CommonClassAMember
Net (loss) income per common share - Diluted:
Net (loss) income per common share - Diluted	$ 0.47us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_CommonClassAMember	$ 1.37us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_CommonClassAMember	$ 0.98us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_CommonClassAMember	$ 2.30us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_CommonClassAMember
Dividends Per Common Share
Dividends Per Common Share	$ 0.08us-gaap_CommonStockDividendsPerShareDeclared / us-gaap_StatementScenarioAxis = us-gaap_CommonClassAMember		$ 0.30us-gaap_CommonStockDividendsPerShareDeclared / us-gaap_StatementScenarioAxis = us-gaap_CommonClassAMember
Class B [Member]
Weighted average common shares - Basic:
Weighted average common shares - Basic	1,212us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementScenarioAxis = us-gaap_CommonClassBMember	1,213us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementScenarioAxis = us-gaap_CommonClassBMember	1,212us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementScenarioAxis = us-gaap_CommonClassBMember	1,213us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / us-gaap_StatementScenarioAxis = us-gaap_CommonClassBMember
Net (loss) income per common share - Basic:
Net (loss) income per common share - Basic	$ 0.43us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_CommonClassBMember	$ 1.26us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_CommonClassBMember	$ 0.91us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_CommonClassBMember	$ 2.11us-gaap_EarningsPerShareBasic / us-gaap_StatementScenarioAxis = us-gaap_CommonClassBMember
Net (loss) income per common share - Diluted:
Net (loss) income per common share - Diluted	$ 0.47us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_CommonClassBMember	$ 1.37us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_CommonClassBMember	$ 0.98us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_CommonClassBMember	$ 2.30us-gaap_EarningsPerShareDiluted / us-gaap_StatementScenarioAxis = us-gaap_CommonClassBMember
Dividends Per Common Share
Dividends Per Common Share	$ 0.07us-gaap_CommonStockDividendsPerShareDeclared / us-gaap_StatementScenarioAxis = us-gaap_CommonClassBMember		$ 0.27us-gaap_CommonStockDividendsPerShareDeclared / us-gaap_StatementScenarioAxis = us-gaap_CommonClassBMember

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The net amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, and (f) miscellaneous other income and expense items.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Paragraph 9

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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-Name Accounting Standards Codification

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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The aggregate total amount of expenses directly related to the marketing or selling of products or services.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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-Name Accounting Standards Codification

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