Investments (Details 1) (USD $)	Dec. 27, 2014	Mar. 29, 2014
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	$ 16,323,000	$ 13,545,000
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	866,000	951,000
Available-for-sale Securities, Amortized Cost Basis	22,014,000	19,132,000
Total Amortized Cost - Available-for-sale Securities	22,014,000	19,132,000
Gross Unrealized Losses	248,000	281,000
Total Fair Value - Available-for-sale Debt Securities	16,539,000	13,530,000
Total Fair Value - Available-for-sale Securities	22,632,000us-gaap_AvailableForSaleSecurities	19,802,000us-gaap_AvailableForSaleSecurities
U.S. Treasury and Government Agencies [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	2,402,000	2,318,000
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	1,000
Gross Unrealized Losses	12,000	46,000
Total Fair Value - Available-for-sale Debt Securities	2,390,000	2,273,000
Mortgage-backed securities [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	3,704,000	3,754,000
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	18,000	13,000
Gross Unrealized Losses	28,000	149,000
Total Fair Value - Available-for-sale Debt Securities	3,694,000	3,618,000
States and political subdivisions [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	7,142,000	5,923,000
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	251,000	155,000
Gross Unrealized Losses	17,000	13,000
Total Fair Value - Available-for-sale Debt Securities	7,376,000	6,065,000
Corporate debt securities [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	3,075,000	1,550,000
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	5,000	24,000
Gross Unrealized Losses	1,000	0
Total Fair Value - Available-for-sale Debt Securities	3,079,000	1,574,000
Marketable equity securities [Member]
Available-for-Sale Securities by Investment Category
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	592,000	758,000
Amortized Cost - Available-for-sale Equity Securities	4,641,000	4,537,000
Gross Unrealized Losses	190,000	73,000
Total Fair Value - Available-for-sale Equity Securities	5,043,000	5,222,000
Certificates of Deposit [Member]
Available-for-Sale Securities by Investment Category
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Available-for-sale Securities, Amortized Cost Basis	1,050,000	1,050,000
Total Amortized Cost - Available-for-sale Securities	1,050,000	1,050,000
Gross Unrealized Losses	0	0
Total Fair Value - Available-for-sale Securities	$ 1,050,000	$ 1,050,000

This item represents the cost of debt 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.

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