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Investments (Gross Unrealized Gains and Losses by Investment Category) (Details) - USD ($) $ in Thousands | Sep. 28, 2019 | Mar. 30, 2019
--- | --- | ---
Available-for-Sale Securities by Investment Category |  |
Amortized Cost | $ 12,075 | $ 13,443
Gross Unrealized Gains | 165 | 123
Gross Unrealized Losses | (59) | (158)
Available-for-sale debt securities | 12,181 | 13,408
Residential mortgage-backed securities |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost | 6,168 | 6,625
Gross Unrealized Gains | 22 | 3
Gross Unrealized Losses | (48) | (119)
Available-for-sale debt securities | 6,142 | 6,509
State and political subdivision debt securities |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost | 3,706 | 4,883
Gross Unrealized Gains | 139 | 117
Gross Unrealized Losses | (3) | (17)
Available-for-sale debt securities | 3,842 | 4,983
Corporate debt securities |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost | 1,901 | 1,635
Gross Unrealized Gains | 4 | 3
Gross Unrealized Losses | (8) | (19)
Available-for-sale debt securities | 1,897 | 1,619
U.S. Treasury and government debt securities |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost | 300 | 300
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | (3)
Available-for-sale debt securities | $ 300 | $ 297

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563 + Details
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