Investments (Details 2) - USD ($) $ in Thousands	Dec. 26, 2015	Mar. 28, 2015
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	$ 625	$ 913
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	13,146	3,350
12 Months or Longer, Fair Value	2,316	1,384
Total Fair Value	15,462	4,734
Less than 12 Months, Unrealized Losses	841	97
12 Months or Longer, Unrealized Losses	168	39
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(1,009)	(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	0	1
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	298	499
12 Months or Longer, Fair Value	694	698
Total Fair Value	992	1,197
Less than 12 Months, Unrealized Losses	1	0
12 Months or Longer, Unrealized Losses	9	5
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(10)	(5)
Mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	3	23
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	5,292	438
12 Months or Longer, Fair Value	612	330
Total Fair Value	5,904	768
Less than 12 Months, Unrealized Losses	44	2
12 Months or Longer, Unrealized Losses	34	25
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(78)	(27)
States and political subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	199	245
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	3,577	1,099
12 Months or Longer, Fair Value	716	256
Total Fair Value	4,293	1,355
Less than 12 Months, Unrealized Losses	37	6
12 Months or Longer, Unrealized Losses	19	6
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(56)	(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	911	247
12 Months or Longer, Fair Value	0	0
Total Fair Value	911	247
Less than 12 Months, Unrealized Losses	9	4
12 Months or Longer, Unrealized Losses	0	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(9)	(4)
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	423	642
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	3,068	1,067
12 Months or Longer, Fair Value	294	100
Total Fair Value	3,362	1,167
Less than 12 Months, Unrealized Losses	750	85
12 Months or Longer, Unrealized Losses	106	3
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	$ (856)	$ (88)