Fair Value Measurements (Book Value and Estimated Fair Value) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 28, 2014		Mar. 29, 2014
Summary of the Fair Value and Carrying Value of Financial Instruments
Mortgage servicing rights	$ 380		$ 350
Reported Value Measurement [Member]
Summary of the Fair Value and Carrying Value of Financial Instruments
Available for sale securities	20,141	[1]	19,802	[1]
Non-marketable equity investments, Fair Value Disclosure	5,473	[2]	5,652	[2]
Consumer loans receivable	98,202	[3]	98,284	[3]
Interest rate lock commitment derivatives	39	[4]	(14)	[4]
Forward loan sale commitment derivatives	(43)	[4]	24	[4]
Inventory finance receivable	21,518	[5]	21,308	[5]
Securitized financings	67,412	[6]	70,052	[6]
Mortgage servicing rights	380	[7]	350	[7]
Estimate of Fair Value Measurement [Member]
Summary of the Fair Value and Carrying Value of Financial Instruments
Available for sale securities	20,141	[1]	19,802	[1]
Non-marketable equity investments, Fair Value Disclosure	5,473	[2]	5,652	[2]
Consumer loans receivable	131,631	[3]	131,384	[3]
Interest rate lock commitment derivatives	39	[4]	(14)	[4]
Forward loan sale commitment derivatives	(43)	[4]	24	[4]
Inventory finance receivable	21,518	[5]	21,308	[5]
Securitized financings	71,740	[6]	74,574	[6]
Mortgage servicing rights	$ 380	[7]	$ 350	[7]

[1] The fair value is based on quoted market prices.

[2] The fair value approximates book value based on the non-marketable nature of the investments.

[3] Includes consumer loans receivable held for investment, held for sale and construction advances. The fair value of the loans held for investment is based on the discounted value of the remaining principal and interest cash flows. The fair value of the loans held for sale are estimated based on recent GSE mortgage backed bond prices. The fair value of the construction advances approximates book value and the sales price of these loans is estimated based on construction completed.

[4] The fair values are based on changes in GSE mortgage backed bond prices and, additionally for IRLCs, pull through rates.

[5] The fair value approximates book value based on current market rates and the revolving nature of the instruments.

[6] The fair value is estimated using recent public transactions of similar asset-backed securities.

[7] The fair value of the mortgage servicing rights is based on the present value of expected net cash flows related to servicing these loans.