Commercial Loans Receivables and Allowance for Loan Loss (Inventory Finance Receivables by Class and Credit Quality Indicator) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 30, 2017	Apr. 01, 2017
Financing Receivable Recorded Investment [Line Items]
Weighted average contractual interest rate, commercial	6.00%	5.60%
Weighted average months to maturity, commercial	7 months	6 months
Direct Inventory Finance [Member]
Risk profile based on payment activity
Financing Receivable, Gross	$ 25,801	$ 24,959
Direct Inventory Finance [Member] | Performing [Member]
Risk profile based on payment activity
Financing Receivable, Gross	25,801	24,886
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	73
Participation Inventory Finance [Member]
Risk profile based on payment activity
Financing Receivable, Gross	1,206	1,084
Participation Inventory Finance [Member] | Performing [Member]
Risk profile based on payment activity
Financing Receivable, Gross	1,206	1,084
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