Investments (Contractual Maturities) (Details) - USD ($) $ in Thousands	Dec. 26, 2020	Mar. 28, 2020
Amortized Cost
Due in less than one year	$ 601
Due after one year through five years	8,335
Due after five years through ten years	1,025
Due after ten years	1,312
Mortgage-backed securities	5,209
Amortized Cost	16,482	$ 14,660
Fair Value
Due in less than one year	603
Due after one year through five years	8,375
Due after five years through ten years	1,097
Due after ten years	1,361
Mortgage-backed securities	5,237
Fair Value	$ 16,673	$ 14,774

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
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-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
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