Investments (Details 1) (USD $)	3 Months Ended	12 Months Ended
	Jun. 28, 2014	Mar. 29, 2014
Available-for-Sale Securities by Investment Category
Total Amortized Cost - Available-for-sale Securities	$ 19,210,000	$ 19,132,000
Gross Unrealized Gains	1,100,000	951,000
Gross Unrealized Losses	(169,000)	(281,000)
Total Fair Value - Available-for-sale Debt Securities	14,385,000	13,530,000
Total Fair Value - Available-for-sale Securities	20,141,000	19,802,000
U.S. Treasury and Government Agencies [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	2,163,000	2,318,000
Gross Unrealized Gains	1,000	1,000
Gross Unrealized Losses	(21,000)	(46,000)
Total Fair Value - Available-for-sale Debt Securities	2,143,000	2,273,000
Mortgage-backed securities [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	3,065,000	3,754,000
Gross Unrealized Gains	14,000	13,000
Gross Unrealized Losses	(75,000)	(149,000)
Total Fair Value - Available-for-sale Debt Securities	3,004,000	3,618,000
States and political subdivisions [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	6,143,000	5,923,000
Gross Unrealized Gains	224,000	155,000
Gross Unrealized Losses	(11,000)	(13,000)
Total Fair Value - Available-for-sale Debt Securities	6,356,000	6,065,000
Corporate debt securities [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	2,866,000	1,550,000
Gross Unrealized Gains	17,000	24,000
Gross Unrealized Losses	(1,000)	0
Total Fair Value - Available-for-sale Debt Securities	2,882,000	1,574,000
Marketable equity securities [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for-sale Equity Securities	3,923,000	4,537,000
Gross Unrealized Gains	844,000	758,000
Gross Unrealized Losses	(61,000)	(73,000)
Total Fair Value - Available-for-sale Equity Securities	4,706,000	5,222,000
Certificates of Deposit [Member]
Available-for-Sale Securities by Investment Category
Total Amortized Cost - Available-for-sale Securities	1,050,000	1,050,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Total Fair Value - Available-for-sale Securities	$ 1,050,000	$ 1,050,000