Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)	Common Stock [Member] Common Class A [Member]	Common Stock [Member] Common Class B [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Jun. 30, 2019	3,746,454	1,414,517
Balance at Jun. 30, 2019	$ 374,645	$ 141,452	$ 7,854,108	$ 15,549,961
Cash dividends paid				(903,170)
Net earnings (loss) for the quarter				285,325	$ 285,325
Balance (in shares) at Sep. 29, 2019	3,746,454	1,414,517
Balance at Sep. 29, 2019	$ 374,645	$ 141,452	7,854,108	14,932,116
Balance (in shares) at Jun. 28, 2020	3,746,454	1,414,517
Balance at Jun. 28, 2020	$ 374,645	$ 141,452	7,854,108	14,146,812	22,517,017
Cash dividends paid
Net earnings (loss) for the quarter				(737,723)	(737,723)
Balance (in shares) at Sep. 27, 2020	3,746,454	1,414,517
Balance at Sep. 27, 2020	$ 374,645	$ 141,452	$ 7,854,108	$ 13,409,089	$ 21,779,294