Commercial Loans Receivables and Allowance for Loan Loss (Commercial Loans Receivables by Class and Credit Quality Indicator) (Details) - USD ($) $ in Thousands	Mar. 28, 2020	Mar. 30, 2019
Direct commercial loans receivables
Financing Receivable Recorded Investment [Line Items]
Commercial loans receivable, gross	$ 47,058	$ 42,899
Direct commercial loans receivables | Performing
Financing Receivable Recorded Investment [Line Items]
Commercial loans receivable, gross	46,872	42,899
Direct commercial loans receivables | Watch List
Financing Receivable Recorded Investment [Line Items]
Commercial loans receivable, gross	186	0
Direct commercial loans receivables | Nonperforming
Financing Receivable Recorded Investment [Line Items]
Commercial loans receivable, gross	0	0
Participation commercial loans receivables
Financing Receivable Recorded Investment [Line Items]
Commercial loans receivable, gross	144	495
Participation commercial loans receivables | Performing
Financing Receivable Recorded Investment [Line Items]
Commercial loans receivable, gross	144	495
Participation commercial loans receivables | Watch List
Financing Receivable Recorded Investment [Line Items]
Commercial loans receivable, gross	0	0
Participation commercial loans receivables | Nonperforming
Financing Receivable Recorded Investment [Line Items]
Commercial loans receivable, gross	$ 0	$ 0