Investments (Details) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2013	Mar. 31, 2012
Available-for-Sale Securities by Investment Category
Total Amortized Cost - Available-for-sale Securities	$ 17,159	$ 14,026
Gross Unrealized Gains	721	309
Gross Unrealized Losses	(182)	(133)
Total Fair Value - Available-for-sale Debt Securities	12,375	10,184
Total Fair Value - Available-for-sale Securities	17,698	14,202
U.S. Treasury and Government Agencies [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	2,682	1,371
Gross Unrealized Gains	11	11
Gross Unrealized Losses	(6)	(1)
Total Fair Value - Available-for-sale Debt Securities	2,687	1,381
Mortgage-backed securities [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	5,226	3,946
Gross Unrealized Gains	21	17
Gross Unrealized Losses	(108)	(48)
Total Fair Value - Available-for-sale Debt Securities	5,139	3,915
States and political subdivisions [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	1,681	1,186
Gross Unrealized Gains	32	26
Gross Unrealized Losses	0	0
Total Fair Value - Available-for-sale Debt Securities	1,713	1,212
Corporate debt securities [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	2,788	3,640
Gross Unrealized Gains	48	37
Gross Unrealized Losses	0	(1)
Total Fair Value - Available-for-sale Debt Securities	2,836	3,676
Marketable equity securities [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for-sale Equity Securities	4,782	3,883
Gross Unrealized Gains	609	218
Gross Unrealized Losses	(68)	(83)
Total Fair Value - Available-for-sale Equity Securities	$ 5,323	$ 4,018

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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+ Details

- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References+ Details

- Definition

Amount of debt securities categorized neither as held-to-maturity nor trading.

+ References

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+ Details

- Definition

Amount of equity securities categorized neither as held-to-maturity nor as trading.

+ References

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+ Details

- Definition

This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References+ Details