Fair Value Measurements (Assets Measured at Fair Value on a Recurring Basis) (Details) (Recurring [Member], USD $) In Thousands, unless otherwise specified	Dec. 28, 2013
Total [Member] | Interest rate lock commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	$ 1	[1]
Total [Member] | Forward loan sale commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	32	[1]
Total [Member] | Mortgage servicing rights [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	390	[2]
Total [Member] | Securities issued by the U.S Treasury and Government [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	2,232	[3]
Total [Member] | Mortgage-backed securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	3,730	[3]
Total [Member] | Securities issued by states and political subdivisions [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	5,933	[3]
Total [Member] | Corporate debt securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	1,842	[3]
Total [Member] | Marketable equity securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	5,600	[3]
Level 1 [Member] | Interest rate lock commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	0	[1]
Level 1 [Member] | Forward loan sale commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	0	[1]
Level 1 [Member] | Mortgage servicing rights [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	0	[2]
Level 1 [Member] | Securities issued by the U.S Treasury and Government [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	0	[3]
Level 1 [Member] | Mortgage-backed securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	0	[3]
Level 1 [Member] | Securities issued by states and political subdivisions [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	0	[3]
Level 1 [Member] | Corporate debt securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	0	[3]
Level 1 [Member] | Marketable equity securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	5,600	[3]
Level 2 [Member] | Interest rate lock commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	0	[1]
Level 2 [Member] | Forward loan sale commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	0	[1]
Level 2 [Member] | Mortgage servicing rights [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	0	[2]
Level 2 [Member] | Securities issued by the U.S Treasury and Government [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	2,232	[3]
Level 2 [Member] | Mortgage-backed securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	3,730	[3]
Level 2 [Member] | Securities issued by states and political subdivisions [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	5,933	[3]
Level 2 [Member] | Corporate debt securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	1,842	[3]
Level 2 [Member] | Marketable equity securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	0	[3]
Level 3 [Member] | Interest rate lock commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	1	[1]
Level 3 [Member] | Forward loan sale commitments [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	32	[1]
Level 3 [Member] | Mortgage servicing rights [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	390	[2]
Level 3 [Member] | Securities issued by the U.S Treasury and Government [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	0	[3]
Level 3 [Member] | Mortgage-backed securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	0	[3]
Level 3 [Member] | Securities issued by states and political subdivisions [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	0	[3]
Level 3 [Member] | Corporate debt securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	0	[3]
Level 3 [Member] | Marketable equity securities [Member]
Summary of Assets Measured at Fair Value on a Recurring Basis
Assets fair value	$ 0	[3]

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

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

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