Commercial Loans Receivables and Allowance for Loan Loss (Inventory Finance Receivables by Class and Credit Quality Indicator) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Dec. 26, 2015	Mar. 28, 2015
Financing Receivable Recorded Investment [Line Items]
Weighted average contractual interest rate, commercial	6.90%	6.50%
Weighted average months to maturity, commercial	9 months	6 months
Direct Inventory Finance [Member]
Risk profile based on payment activity
Financing Receivable, Gross	$ 22,492	$ 15,802
Direct Inventory Finance [Member] | Performing [Member]
Risk profile based on payment activity
Financing Receivable, Gross	22,492	15,728
Direct Inventory Finance [Member] | Watch list [Member]
Risk profile based on payment activity
Financing Receivable, Gross	0	0
Direct Inventory Finance [Member] | Nonperforming [Member]
Risk profile based on payment activity
Financing Receivable, Gross	0	74
Participation Inventory Finance [Member]
Risk profile based on payment activity
Financing Receivable, Gross	1,369	2,352
Participation Inventory Finance [Member] | Performing [Member]
Risk profile based on payment activity
Financing Receivable, Gross	1,369	2,352
Participation Inventory Finance [Member] | Watch list [Member]
Risk profile based on payment activity
Financing Receivable, Gross	0	0
Participation Inventory Finance [Member] | Nonperforming [Member]
Risk profile based on payment activity
Financing Receivable, Gross	$ 0	$ 0