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Investments (Continuous Unrealized Loss Positions) (Details) - USD ($) $ in Thousands | Mar. 28, 2020 | Mar. 30, 2019
--- | --- | ---
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 Months, Fair Value | $ 4,481 | $ 1,662
Unrealized Losses, less than 12 months | (67) | (17)
12 Months or Longer, Fair Value | 1,880 | 8,895
Unrealized losses, 12 months or longer | (27) | (141)
Total Fair Value | 6,361 | 10,557
Unrealized Losses | (94) | (158)
U.S. Treasury and government debt securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 Months, Fair Value |  | 0
Unrealized Losses, less than 12 months |  | 0
12 Months or Longer, Fair Value |  | 297
Unrealized losses, 12 months or longer |  | (3)
Total Fair Value |  | 297
Unrealized Losses |  | (3)
Residential mortgage-backed securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 Months, Fair Value | 133 | 1,066
Unrealized Losses, less than 12 months | 0 | (9)
12 Months or Longer, Fair Value | 1,779 | 5,206
Unrealized losses, 12 months or longer | (26) | (110)
Total Fair Value | 1,912 | 6,272
Unrealized Losses | (26) | (119)
States and political subdivision debt securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 Months, Fair Value | 601 | 353
Unrealized Losses, less than 12 months | (2) | 0
12 Months or Longer, Fair Value | 101 | 2,319
Unrealized losses, 12 months or longer | (1) | (17)
Total Fair Value | 702 | 2,672
Unrealized Losses | (3) | (17)
Corporate debt securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 Months, Fair Value | 3,747 | 243
Unrealized Losses, less than 12 months | (65) | (8)
12 Months or Longer, Fair Value | 0 | 1,073
Unrealized losses, 12 months or longer |  | (11)
Total Fair Value | 3,747 | 1,316
Unrealized Losses | $ (65) | $ (19)

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- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale in a continuous loss position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27337-111563 + Details
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