Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands		Dec. 30, 2017	Apr. 01, 2017
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Servicing Asset at Fair Value, Amount		$ 1,312	$ 1,110
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Construction Loan		12,407
Inventory Finance Receivable		26,872
Loans Held for Investment Fair Value Disclosure		91,627
Recurring [Member] | US Treasury and Government [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	(296)
Recurring [Member] | Mortgage-backed securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	(7,407)
Recurring [Member] | Securities issued by states and political subdivisions [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	(6,924)
Recurring [Member] | Corporate debt securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	(1,637)
Recurring [Member] | Marketable equity securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	(11,461)
Recurring [Member] | Interest rate lock commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[2]	(10)
Recurring [Member] | Forward loan sale commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[2]	(226)
Recurring [Member] | Mortgage servicing rights [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[3]	(1,312)
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Construction Loan		0
Inventory Finance Receivable		0
Loans Held for Investment Fair Value Disclosure		0
Fair Value, Inputs, Level 1 [Member] | Recurring [Member] | US Treasury and Government [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	0
Fair Value, Inputs, Level 1 [Member] | Recurring [Member] | Mortgage-backed securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	0
Fair Value, Inputs, Level 1 [Member] | Recurring [Member] | Securities issued by states and political subdivisions [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	0
Fair Value, Inputs, Level 1 [Member] | Recurring [Member] | Corporate debt securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	0
Fair Value, Inputs, Level 1 [Member] | Recurring [Member] | Marketable equity securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	(11,461)
Fair Value, Inputs, Level 1 [Member] | Recurring [Member] | Interest rate lock commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[2]	0
Fair Value, Inputs, Level 1 [Member] | Recurring [Member] | Forward loan sale commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[2]	0
Fair Value, Inputs, Level 1 [Member] | Recurring [Member] | Mortgage servicing rights [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[3]	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Construction Loan		0
Inventory Finance Receivable		0
Loans Held for Investment Fair Value Disclosure		0
Fair Value, Inputs, Level 2 [Member] | Recurring [Member] | US Treasury and Government [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	(296)
Fair Value, Inputs, Level 2 [Member] | Recurring [Member] | Mortgage-backed securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	(7,407)
Fair Value, Inputs, Level 2 [Member] | Recurring [Member] | Securities issued by states and political subdivisions [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	(6,924)
Fair Value, Inputs, Level 2 [Member] | Recurring [Member] | Corporate debt securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	(1,637)
Fair Value, Inputs, Level 2 [Member] | Recurring [Member] | Marketable equity securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	0
Fair Value, Inputs, Level 2 [Member] | Recurring [Member] | Interest rate lock commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[2]	0
Fair Value, Inputs, Level 2 [Member] | Recurring [Member] | Forward loan sale commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[2]	0
Fair Value, Inputs, Level 2 [Member] | Recurring [Member] | Mortgage servicing rights [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[3]	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Construction Loan		12,407
Inventory Finance Receivable		26,872
Loans Held for Investment Fair Value Disclosure		91,627
Fair Value, Inputs, Level 3 [Member] | Recurring [Member] | US Treasury and Government [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	0
Fair Value, Inputs, Level 3 [Member] | Recurring [Member] | Mortgage-backed securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	0
Fair Value, Inputs, Level 3 [Member] | Recurring [Member] | Securities issued by states and political subdivisions [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	0
Fair Value, Inputs, Level 3 [Member] | Recurring [Member] | Corporate debt securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	0
Fair Value, Inputs, Level 3 [Member] | Recurring [Member] | Marketable equity securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	0
Fair Value, Inputs, Level 3 [Member] | Recurring [Member] | Interest rate lock commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[2]	(10)
Fair Value, Inputs, Level 3 [Member] | Recurring [Member] | Forward loan sale commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[2]	(226)
Fair Value, Inputs, Level 3 [Member] | Recurring [Member] | Mortgage servicing rights [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[3]	$ (1,312)

[1] Unrealized gains or losses on investments are recorded in accumulated other comprehensive income (loss) at each measurement date

[2] Gains or losses on derivatives are recognized in current period earnings through cost of sales.

[3] Changes in the fair value of mortgage servicing rights are recognized in the current period earnings through net revenue.