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FAIR VALUE MEASUREMENTS (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 29, 2018 | Sep. 30, 2017 | Sep. 29, 2018 | Sep. 30, 2017 | Dec. 30, 2017
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | $ 52,083,476 |  | $ 52,083,476 |  | $ 71,234,230
Noncash or Part Noncash Acquisition, Interest Acquired |  |  | 15.00% |  |
Gain on investments | 0 | $ 0 | $ 2,849,816 | $ 274,000 |
Level 1 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 20,672,792 |  | 20,672,792 |  | 32,254,096
Level 2 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 25,837,868 |  | 25,837,868 |  | 36,980,134
Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) |  |  | 3,900,000 |  |
Financial Instruments, Owned, at Fair Value | 5,572,816 |  | 5,572,816 |  | 2,000,000
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) |  |  | (327,184) |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 |  |  | 0 |  |
Equity Investment One [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) |  |  | (277,000) |  |
Equity Securities [Member] |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 3,900,000 |  | 3,900,000 |  |
Payments to Acquire an Equity Investment | 1,000,000 |  | 1,000,000 |  |
Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) |  |  | 5,849,816 |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  |  | 0 |  |
Financial Instruments, Owned, at Fair Value | 5,572,816 |  | 5,572,816 |  |
Warrant [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) |  |  | (1,949,816) |  |
Financial Instruments, Owned, at Fair Value | 0 |  | 0 |  | 2,000,000
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) |  |  | (50,184) |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 |  |  | 0 |  |
Certificates of Deposit [Member] |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value |  |  |  |  | 200,740
Certificates of Deposit [Member] | Level 2 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value |  |  |  |  | 200,740
Certificates of Deposit [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value |  |  |  |  | 0
Corporate Debt Securities [Member] |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 11,179,861 |  | 11,179,861 |  | 8,980,906
Corporate Debt Securities [Member] | Level 2 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 11,179,861 |  | 11,179,861 |  | 8,980,906
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 0 |  | 0 |  | 0
U.S. Government Securities |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 15,656,107 |  | 15,656,107 |  | 34,725,811
U.S. Government Securities | Level 1 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 998,100 |  | 998,100 |  | 6,927,323
U.S. Government Securities | Level 2 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 14,658,007 |  | 14,658,007 |  | 27,798,488
U.S. Government Securities | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 0 |  | 0 |  | 0
Cash and Cash Equivalents |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 19,367,048 |  | 19,367,048 |  | 24,848,227
Cash and Cash Equivalents | Level 1 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 19,367,048 |  | 19,367,048 |  | 24,848,227
Cash and Cash Equivalents | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 0 |  | 0 |  | 0
Equity Securities [Member] |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 5,572,816 |  | 5,572,816 |  |
Equity Securities [Member] | Level 1 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 0 |  | 0 |  |
Equity Securities [Member] | Level 2 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 0 |  | 0 |  |
Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 5,572,816 |  | 5,572,816 |  |
GCS Holdings |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 307,644 |  | 307,644 |  | 478,546
GCS Holdings | Level 1 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 307,644 |  | 307,644 |  | 478,546
GCS Holdings | Level 2 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | 0 |  | 0 |  |
GCS Holdings | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value | $ 0 |  | $ 0 |  | 0
Warrant [Member] |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value |  |  |  |  | 2,000,000
Warrant [Member] | Level 1 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value |  |  |  |  | 0
Warrant [Member] | Level 2 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value |  |  |  |  | 0
Warrant [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Financial Instruments, Owned, at Fair Value |  |  |  |  | $ 2,000,000

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- Definition Amount of unrealized (holding) gain (loss) which is included in the statement of income (or changes in net assets) related to those assets still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + 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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