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Schedule of Fair Value Measurements of Financial Assets (Details) - USD ($) | Dec. 26, 2020 | Dec. 28, 2019
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Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value | $ 25,272,075 | $ 26,319,403
Fair Value, Inputs, Level 1 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value | 17,406,760 | 6,415,958
Fair Value, Inputs, Level 2 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value | 3,635,681 | 15,752,997
Fair Value, Inputs, Level 3 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value | 4,229,634 | 4,150,448
Cash and Cash Equivalents [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value | 17,112,869 | 6,029,247
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value | 17,112,869 | 6,029,247
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value |  |
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value |  |
U.S. Government and Agency Backed Securities [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value | 1,023,120 | 8,296,870
U.S. Government and Agency Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value |  |
U.S. Government and Agency Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value | 1,023,120 | 8,296,870
U.S. Government and Agency Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value |  |
Corporate Debt [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value | 2,612,561 | 7,456,127
Corporate Debt [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value |  |
Corporate Debt [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value | 2,612,561 | 7,456,127
Corporate Debt [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value |  |
Equity Investments [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value | 4,523,525 | 4,537,159
Equity Investments [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value | 293,891 | 386,711
Equity Investments [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value |  |
Equity Investments [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Financial instruments, owned, at fair value | $ 4,229,634 | $ 4,150,448

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- Definition 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. + References No definition available. + Details
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- Definition The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35711157&loc=d3e42546-110969 + Details
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