Investments (Details 2) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Dec. 28, 2013	Mar. 30, 2013
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	$ 8,224	$ 2,957
12 Months or Longer, Fair Value	553	304
Total Fair Value	8,777	3,261
Less than 12 Months, Unrealized Losses	(434)	(127)
12 Months or Longer, Unrealized Losses	(18)	(55)
Total Unrealized Losses	(452)	(182)
U.S. Treasury and Government Agencies [Member]
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	1,456	1,084
12 Months or Longer, Fair Value	0	0
Total Fair Value	1,456	1,084
Less than 12 Months, Unrealized Losses	(95)	(6)
12 Months or Longer, Unrealized Losses	0	0
Total Unrealized Losses	(95)	(6)
Mortgage-backed securities [Member]
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	2,872	1,460
12 Months or Longer, Fair Value	341	0
Total Fair Value	3,213	1,460
Less than 12 Months, Unrealized Losses	(239)	(108)
12 Months or Longer, Unrealized Losses	(9)	0
Total Unrealized Losses	(248)	(108)
States and political subdivisions [Member]
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	2,931
12 Months or Longer, Fair Value	0
Total Fair Value	2,931
Less than 12 Months, Unrealized Losses	(37)
12 Months or Longer, Unrealized Losses	0
Total Unrealized Losses	(37)
Marketable equity securities [Member]
Investment Securities in a Continuous Unrealized Loss Position
Less than 12 Months, Fair Value	965	413
12 Months or Longer, Fair Value	212	304
Total Fair Value	1,177	717
Less than 12 Months, Unrealized Losses	(63)	(13)
12 Months or Longer, Unrealized Losses	(9)	(55)
Total Unrealized Losses	$ (72)	$ (68)