Note 3 - Investments (Tables)

12 Months Ended

Jun. 28, 2020

Notes Tables

Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block]

	Original Cost		Unrealized Gain		Unrealized Loss			Fair Value
Ju ne 28 , 20 20
Equity securities	$	1,279,914	$	3,472,568	$	(27,012	)	$	4,725,470
Mutual fund		475,179		15,569		-			490,748
Certificates of deposits & Treasury bills		134,202		-		-			134,202
Ju ne 30 , 20 1 9
Equity securities	$	1,279,914	$	3,837,143	$	(16,716	)	$	5,100,341
Mutual fund		1,921,413		8,162		-			1,929,575
Certificates of deposits		433,249		-		-			433,249

Schedule of Unrealized Loss on Investments [Table Text Block]

	Less than 12 months				12 Months or greater					Total
June 28, 2020	Fair Value		Unrealized loss		Fair Value		Unrealized loss			Fair Value		Unrealized loss
Equity securities	$	-	$	-	$	41,949	$	(27,012	)	$	41,949	$	(27,012	)

	Less than 12 months					12 Months or greater					Total
June 30, 2019	Fair Value		Unrealized loss			Fair Value		Unrealized loss			Fair Value		Unrealized loss
Equity securities	$	51,720	$	(6,523	)	$	525	$	(10,193	)	$	52,245	$	(16,716	)

Schedule Of Telecommunications Stocks Held [Table Text Block]

AT&T shares	82,112
Manulife shares	2,520
NCR shares	774
Teradata shares	774
Vodafone shares	6,471
CenturyLink shares	4,398
Frontier Communications shares	300
T-Mobile shares	4,102
Verizon shares	31,904
Windstream shares	135
Uniti shares	815

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

	Quoted		Significant				Unrealized			Cumulative
	Price for		Other		Significant		gains/(losses)			Unrealized
	Identical		Observable		Unobservable		for the			gains/(losses)
	Assets		Inputs		Inputs		Year Ended			as of
Description	(Level 1)		(Level 2)		(Level 3)		June 28, 2020			June 28, 2020
Equity securities	$	4,725,470	$	-	$	-	$	(374,871	)	$	3,445,556
Mutual fund		490,748		-		-		7,405			15,569
Certificates of deposits		-		134,202		-		-			-
TOTAL	$	5,216,218	$	134,202		-	$	(367,466)		$	3,461,125

	Quoted		Significant				Unrealized		Cumulative
	Price for		Other		Significant		gains/(losses)		Unrealized
	Identical		Observable		Unobservable		for the		gains/(losses)
	Assets		Inputs		Inputs		Year Ended		as of
Description	(Level 1)		(Level 2)		(Level 3)		June 30, 2019		June 30, 2019
Equity securities	$	5,100,341	$	-	$	-	$	283,537	$	3,820,427
Mutual fund		1,929,575		-		-		47,612		8,162
Certificates of deposits		-		433,249		-		-		-
TOTAL	$	7,029,916	$	433,249		-	$	331,149	$	3,828,589