Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands		Dec. 26, 2015	Mar. 28, 2015
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Servicing Asset at Fair Value, Amount		$ 738	$ 475
Estimate of Fair Value Measurement [Member] | Recurring [Member] | US Treasury and Government [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	992
Estimate of Fair Value Measurement [Member] | Recurring [Member] | Mortgage-backed securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	6,214
Estimate of Fair Value Measurement [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]	7,647
Estimate of Fair Value Measurement [Member] | Recurring [Member] | Corporate debt securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	1,162
Estimate of Fair Value Measurement [Member] | Recurring [Member] | Marketable equity securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	5,421
Estimate of Fair Value Measurement [Member] | Recurring [Member] | Interest rate lock commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[2]	13
Estimate of Fair Value Measurement [Member] | Recurring [Member] | Forward loan sale commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[2]	(26)
Estimate of Fair Value Measurement [Member] | Recurring [Member] | Mortgage servicing rights [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[3]	738
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]	5,421
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] | Recurring [Member] | US Treasury and Government [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	[1]	992
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]	6,214
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]	7,647
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]	1,162
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] | 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]	13
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]	(26)
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]	$ 738

[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.