Investments (Details 2) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Sep. 27, 2014	Mar. 29, 2014
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	$ 5,248	$ 5,723
12 Months or Longer, Fair Value	2,046	344
Total Fair Value	7,294	6,067
Less than 12 Months, Unrealized Losses	(176)	(275)
12 Months or Longer, Unrealized Losses	(61)	(6)
Total Unrealized Losses	(237)	(281)
U.S. Treasury and Government Agencies [Member]
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	942	1,562
12 Months or Longer, Fair Value	682	344
Total Fair Value	1,624	1,906
Less than 12 Months, Unrealized Losses	(6)	(40)
12 Months or Longer, Unrealized Losses	(21)	(6)
Total Unrealized Losses	(27)	(46)
Mortgage-backed securities [Member]
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	1,477	2,553
12 Months or Longer, Fair Value	856	0
Total Fair Value	2,333	2,553
Less than 12 Months, Unrealized Losses	(40)	(149)
12 Months or Longer, Unrealized Losses	(29)	0
Total Unrealized Losses	(69)	(149)
States and political subdivisions [Member]
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	253	507
12 Months or Longer, Fair Value	508	0
Total Fair Value	761	507
Less than 12 Months, Unrealized Losses	(1)	(13)
12 Months or Longer, Unrealized Losses	(11)	0
Total Unrealized Losses	(12)	(13)
Corporate Debt Securities [Member]
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	1,525
12 Months or Longer, Fair Value	0
Total Fair Value	1,525
Less than 12 Months, Unrealized Losses	(2)
12 Months or Longer, Unrealized Losses	0
Total Unrealized Losses	(2)
Equity Securities [Member]
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	1,051	1,101
12 Months or Longer, Fair Value	0	0
Total Fair Value	1,051	1,101
Less than 12 Months, Unrealized Losses	(127)	(73)
12 Months or Longer, Unrealized Losses	0	0
Total Unrealized Losses	$ (127)	$ (73)