Marketable Securities (Schedule of Available-for-sale Securities) (Details) - USD ($) $ in Thousands	Sep. 24, 2022	Mar. 26, 2022
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 76,145	$ 76,673
Gross Unrealized Gains	0	2
Gross Unrealized Losses	(3,263)	(2,325)
Estimated Fair Value (Net Carrying Amount)	72,882	74,350
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	69,730	70,296
Gross Unrealized Gains	0	2
Gross Unrealized Losses	(2,962)	(2,133)
Estimated Fair Value (Net Carrying Amount)	66,768	68,165
Non-U.S. government securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	511	509
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(12)	(9)
Estimated Fair Value (Net Carrying Amount)	499	500
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	5,520	5,483
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(264)	(169)
Estimated Fair Value (Net Carrying Amount)	5,256	5,314
Agency discount notes
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	384	385
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(25)	(14)
Estimated Fair Value (Net Carrying Amount)	$ 359	$ 371

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).

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)
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Amount, before tax, of unrealized loss 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).

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
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-Section 50
-Paragraph 2
-Subparagraph (c)
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Amortized cost excluding accrued interest, after allowance for credit loss, of 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/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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