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Financial Instruments (Tables)

12 Months Ended

Dec. 28, 2019

Financial Instruments [Abstract]

Fair Value, by Balance Sheet Grouping

					Fair Value Measurement at December 28, 2019 Using:
	Total				Level 1				Level 2				Level 3
Cash and cash equivalents	$	6,029,247			$	6,029,247			$	—			$	—
U.S. government and agency backed securities	8,296,870				—				8,296,870				—
Corporate debt	7,456,127				—				7,456,127				—
Equity Investments	4,537,159				386,711				—				4,150,448
	$	26,319,403			$	6,415,958			$	15,752,997			$	4,150,448

					Fair Value Measurement at December 29, 2018 Using:
	Total				Level 1				Level 2				Level 3
Cash and cash equivalents	$	14,326,347			$	14,326,347			$	—			$	—
U.S. government and agency backed securities	12,810,923				—				12,810,923				—
Corporate debt	10,107,093				—				10,107,093				—
Equity Investments	5,853,525				288,026				—				5,565,499
	$	43,097,888			$	14,614,373			$	22,918,016			$	5,565,499

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

Changes in Level 3 investments are as follows:

	December 29, 2018				Net unrealized gains/(losses)				Purchases, issuances and settlements				Transfers in and or out of Level 3				December 28, 2019
Equity Investments	$	5,565,499			$	(3,915,051	)		$	2,500,000			$	—			$	4,150,448

Available-for-sale Securities

Investments in available-for-sale marketable debt securities are as follows at December 28, 2019 and December 29, 2018: 

	Amortized Cost								Unrealized Losses								Fair Value
	2019				2018				2019				2018				2019				2018
U.S. government and agency backed securities	$	8,304,229			$	13,064,418			$	(7,359	)		$	(253,495	)		$	8,296,870			$	12,810,923
Corporate debt	7,459,298				10,175,084				(3,171		)		(67,991		)		7,456,127				10,107,093
Total	$	15,763,527			$	23,239,502			$	(10,530	)		$	(321,486	)		$	15,752,997			$	22,918,016

Investments Classified by Contractual Maturity Date

The contractual maturity of the Company’s marketable debt securities is as follows at December 28, 2019:

	Less than One year				One to Five years				Total
U.S. government and agency backed securities	$	299,250			$	7,997,620			$	8,296,870
Corporate debt	3,346,615				4,109,512				7,456,127
Total	$	3,645,865			$	12,107,132			$	15,752,997

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Financial Instruments [Abstract]

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Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

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Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.

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Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

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