Investments (Details 2) - USD ($) $ in Thousands	Jun. 27, 2015	Mar. 28, 2015	Mar. 29, 2014
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	$ 600	$ 913
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	9,293	3,350
12 Months or Longer, Fair Value	1,406	1,384
Total Fair Value	10,699	4,734
Less than 12 Months, Unrealized Losses	378	97
12 Months or Longer, Unrealized Losses	85	39
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(463)	(136)
U.S. Treasury and Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	1	1
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	200	499
12 Months or Longer, Fair Value	692	698
Total Fair Value	892	1,197
Less than 12 Months, Unrealized Losses	0	0
12 Months or Longer, Unrealized Losses	11	5
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(11)	(5)
Mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	14	23
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	2,753	438
12 Months or Longer, Fair Value	292	330
Total Fair Value	3,045	768
Less than 12 Months, Unrealized Losses	17	2
12 Months or Longer, Unrealized Losses	26	25
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(43)	(27)
States and political subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	163	245
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	2,602	1,099
12 Months or Longer, Fair Value	254	256
Total Fair Value	2,856	1,355
Less than 12 Months, Unrealized Losses	24	6
12 Months or Longer, Unrealized Losses	8	6
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(32)	(12)
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	2
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	781		$ 247
12 Months or Longer, Fair Value	0	0
Total Fair Value	781	247
Less than 12 Months, Unrealized Losses	1	4
12 Months or Longer, Unrealized Losses	0	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(1)	(4)
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	422	642
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	2,957	1,067
12 Months or Longer, Fair Value	168	100
Total Fair Value	3,125	1,167
Less than 12 Months, Unrealized Losses	336	85
12 Months or Longer, Unrealized Losses	40	3
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	$ (376)	$ (88)