Investments Investments (Available-for-sale Summary) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Apr. 01, 2017
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	$ 16,412
Total Fair Value - Available-for-sale Debt Securities	16,181
Total Amortized Cost - Available-for-sale Securities	24,655	$ 21,941
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	2,545	2,582
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(614)	(361)
Available-for-sale Securities	26,586	24,162
Equity Method Investments	18,853	17,383
U.S. Treasury and Government Agencies [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	300	650
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(7)	(1)
Total Fair Value - Available-for-sale Debt Securities	293	649
Mortgage-backed securities [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	7,654	5,646
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	0	3
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(155)	(90)
Total Fair Value - Available-for-sale Debt Securities	7,499	5,559
States and political subdivisions [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	6,377	7,195
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	109	145
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(149)	(117)
Total Fair Value - Available-for-sale Debt Securities	6,337	7,223
Corporate debt securities [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for sale Debt Securities	2,081	1,698
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	1	4
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(30)	(23)
Total Fair Value - Available-for-sale Debt Securities	2,052	1,679
Equity Securities [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for-sale Equity Securities	6,533	5,752
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax	2,435	2,430
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax	(273)	(130)
Available-for-sale Securities, Equity Securities	8,695	8,052
Certificates of Deposit [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost - Available-for-sale Equity Securities	1,710	1,000
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax	0	0
Available-for-sale Securities, Equity Securities	$ 1,710	$ 1,000

Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt securities classified as available-for-sale.

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