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Cash and Cash Equivalents and Investments (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 29, 2015
Mar. 30, 2014
Cash [Member]    
Assets:    
Cash/Certificates of deposit/Money market securities $ 18,639us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_CashMember		 $ 33,486us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_CashMember
Certificates of deposit [Member]    
Assets:    
Cash/Certificates of deposit/Money market securities 29,136us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_CertificatesOfDepositMember		 24,437us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_CertificatesOfDepositMember
Municipal Bonds [Member]    
Assets:    
Cash/Certificates of deposit/Money market securities 2,598us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_MunicipalBondsMember		 5,258us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_MunicipalBondsMember
Level 1 [Member] | Cash [Member]    
Assets:    
Cash/Certificates of deposit/Money market securities 18,639us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_CashMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member		 33,486us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_CashMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Level 1 [Member] | Certificates of deposit [Member]    
Assets:    
Cash/Certificates of deposit/Money market securities 0us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_CertificatesOfDepositMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member		 0us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_CertificatesOfDepositMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Level 1 [Member] | Money market securities [Member]    
Assets:    
Cash/Certificates of deposit/Money market securities 0us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_MoneyMarketFundsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member		 0us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_MoneyMarketFundsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Level 2 [Member] | Cash [Member]    
Assets:    
Cash/Certificates of deposit/Money market securities 0us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_CashMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member		 0us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_CashMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Level 2 [Member] | Certificates of deposit [Member]    
Assets:    
Cash/Certificates of deposit/Money market securities 29,136us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_CertificatesOfDepositMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member		 24,437us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_CertificatesOfDepositMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Level 2 [Member] | Municipal Bonds [Member]    
Assets:    
Cash/Certificates of deposit/Money market securities 2,598us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_MunicipalBondsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member		 5,258us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_MunicipalBondsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Level 3 [Member] | Cash [Member]    
Assets:    
Cash/Certificates of deposit/Money market securities 0us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_CashMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member		 0us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_CashMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
Level 3 [Member] | Certificates of deposit [Member]    
Assets:    
Cash/Certificates of deposit/Money market securities 0us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_CertificatesOfDepositMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member		 0us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_CertificatesOfDepositMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
Level 3 [Member] | Money market securities [Member]    
Assets:    
Cash/Certificates of deposit/Money market securities $ 0us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_MoneyMarketFundsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member		 $ 0us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_CashAndCashEquivalentsAxis
= us-gaap_MoneyMarketFundsMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member