Fair Value Measurements [Line Items]

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- Definition

Carrying amount of intellectual property included in a transaction.

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- Definition

Payments to Acquire an Equity Investment

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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).

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- Definition

Amount of purchases, (sales), issuances and (settlements) of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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- Definition

Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy.

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- Definition

Amount of transfers of financial instrument classified as an asset out of level 3 of the fair value hierarchy.

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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.

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- Definition

Amount of realized and unrealized gain (loss) on investment.

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The level of ownership or equity interest acquired in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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FAIR VALUE MEASUREMENTS (Details) - USD ($)	3 Months Ended		6 Months Ended
FAIR VALUE MEASUREMENTS (Details) - USD ($)	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017	Dec. 30, 2017
Fair Value Measurements [Line Items]
Financial Instruments, Owned, at Fair Value	$ 59,516,997		$ 59,516,997		$ 71,234,230
Payments to Acquire Equity Method Investments			$ 0
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	26,124,652		26,124,652		32,254,096
Level 2
Fair Value Measurements [Line Items]
Financial Instruments, Owned, at Fair Value	27,683,529		27,683,529		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	5,708,816		5,708,816		2,000,000
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss)			(191,184)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3			0
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)			3,900,000
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3			1,949,816
Financial Instruments, Owned, at Fair Value	5,708,816		5,708,816
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss)			(141,000)
Warrant [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements [Line Items]
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			(1,949,816)
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	7,262,615		7,262,615		8,980,906
Corporate Debt Securities [Member] \| Level 2
Fair Value Measurements [Line Items]
Financial Instruments, Owned, at Fair Value	7,262,615		7,262,615		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	23,418,514		23,418,514		34,725,811
U.S. Government Securities \| Level 1
Fair Value Measurements [Line Items]
Financial Instruments, Owned, at Fair Value	2,997,600		2,997,600		6,927,323
U.S. Government Securities \| Level 2
Fair Value Measurements [Line Items]
Financial Instruments, Owned, at Fair Value	20,420,914		20,420,914		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	22,742,575		22,742,575		24,848,227
Cash and Cash Equivalents \| Level 1
Fair Value Measurements [Line Items]
Financial Instruments, Owned, at Fair Value	22,742,575		22,742,575		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	5,708,816		5,708,816
Gain on investments			2,900,000
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	5,708,816		5,708,816
GCS Holdings
Fair Value Measurements [Line Items]
Financial Instruments, Owned, at Fair Value	384,477		384,477		478,546
GCS Holdings \| Level 1
Fair Value Measurements [Line Items]
Financial Instruments, Owned, at Fair Value	384,477		384,477		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