Commercial Loans Receivables and Allowance for Loan Loss (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 28, 2015	Mar. 29, 2014	Mar. 30, 2013
Receivables [Abstract]
Due days for loans accounted for on a non-accrual basis and accruing loans with principal payments past	90 days or more
Due days for loans on nonaccrual status when interest is past due and remains unpaid	90 days or more
Percentage of principal balance of the commercial loans receivables	excess of 10% of the principal balance of commercial loans receivable
Loans and Leases Receivable, Commercial, Allowance	$ 73	$ 139	$ 350