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Commercial Loans Receivables and Allowance for Loan Loss (Changes in the Estimated Allowance for Loan Loss) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 28, 2015
Mar. 29, 2014
Mar. 28, 2015
Changes in the Allowance for Loan Losses on Commercial Loans Receivables      
Balance at beginning of period $ 139us-gaap_LoansAndLeasesReceivableCommercialAllowance $ 350us-gaap_LoansAndLeasesReceivableCommercialAllowance $ 73us-gaap_LoansAndLeasesReceivableCommercialAllowance
Provision for commercial loan credit losses (83)us-gaap_ProvisionForLoanLossesExpensed (224)us-gaap_ProvisionForLoanLossesExpensed  
Loans charged off, net of recoveries $ 17us-gaap_AllowanceForLoanAndLeaseLossesWriteoffsNet $ 13us-gaap_AllowanceForLoanAndLeaseLossesWriteoffsNet