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Schedule of Available-for-sale Marketable Debt Securities (Details) - USD ($)	Dec. 25, 2021	Dec. 26, 2020
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Amortized Cost	$ 2,500,128	$ 3,607,645
Unrealized Gains/(Losses)	7,407	28,036
Fair Value	2,507,535	3,635,681
U.S. Government and Agency Backed Securities [Member]
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Amortized Cost	1,000,128	1,003,941
Unrealized Gains/(Losses)	522	19,179
Fair Value	1,000,650	1,023,120
Corporate Debt [Member]
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Amortized Cost	1,500,000	2,603,704
Unrealized Gains/(Losses)	6,885	8,857
Fair Value	$ 1,506,885	$ 2,612,561

X

- Definition

Amortized cost 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/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

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- Definition

Amount 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/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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Amount, before tax, of unrealized gain (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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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