Commercial Loans Receivables and Allowance for Loan Loss (Changes in the Estimated Allowance for Loan Loss) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 30, 2017	Dec. 31, 2016
Receivables [Abstract]
Allowance for Loan and Lease Losses, Period Increase (Decrease)	$ (89,000)	$ 4,000	$ (57,000)	$ 2,000
Changes in the Allowance for Loan Losses on Inventory Finance Receivables
Balance at beginning of period	242,000	126,000	210,000	128,000
Loans charged off, net of recoveries	0	0	0	0
Balance at end of period	$ 153,000	$ 130,000	$ 153,000	$ 130,000