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Investments (Details 4) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 29, 2018 | Dec. 30, 2017 | Dec. 29, 2018 | Dec. 30, 2017
Gain (Loss) on Securities [Line Items] |  |  |  |
Debt Securities, Available-for-sale, Realized Loss | $ 0 | $ (18,000) | $ 0 | $ (28,000)
Value of investments to be other-than-temporarily impaired |  |  | 0 |
Equity Securities gain on investments held |  |  | (1,698,000) |
Equity Securities Loss on investments held | (2,996,000) | 0 |  | 0
Equity Securities loss on investments sold | 11,000 | 0 | (42,000) | 0
Gain (Loss) on Equity Securities | (2,985,000) |  | (1,740,000) |
Equity Securities [Member] |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Available-for-sale Securities, Gross Realized Gains | 0 | 147,000 | 0 | 882,000
Available-for-sale Securities, Gross Realized Losses | $ 0 | (23,000) | $ 0 | (135,000)
Available-for-sale Securities, Gross Realized Gain (Loss), Excluding Other than Temporary Impairments |  | $ 124,000 |  | $ 747,000

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- Definition Amount of realized loss 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://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27357-111563 + Details
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- Definition Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84241550&loc=SL75117546-209714 + Details
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- Definition Amount of realized loss from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84241550&loc=SL75117546-209714 + Details
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