Consolidated Statements of Stockholders' Equity - USD ($)	Common Stock [Member] Common Class A [Member]	Common Stock [Member] Common Class B [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Jun. 28, 2015	3,746,454,454	1,414,517
Balance at Jun. 28, 2015	$ 374,645	$ 141,452	$ 7,854,108	$ 2,452,888	$ 16,150,986
Cash dividends paid					(2,632,095)
Accrued dividends declared and payable					(877,366)
Change in unrealized gain on available-for- sale securities (shown net of tax)				548,740		$ 548,740
Reclassification adjustment for gain included in net income, net of tax				(15,041)		(15,041)
Net earnings for the year					2,151,025	2,151,025
Balance at Jul. 03, 2016	$ 374,645	$ 141,452	7,854,108,094	2,986,587	14,792,550
Balance (in shares) at Jul. 03, 2016	3,746,454	1,414,517
Cash dividends paid					(2,632,095)
Accrued dividends declared and payable					(877,365)
Change in unrealized gain on available-for- sale securities (shown net of tax)				(508,218)		(508,218)
Reclassification adjustment for gain included in net income, net of tax				3,619		3,619
Net earnings for the year					2,451,110	$ 2,451,110
Balance at Jul. 02, 2017	$ 374,645	$ 141,452	$ 7,854,108	$ 2,481,988	$ 13,734,200
Balance (in shares) at Jul. 02, 2017	3,746,454	1,414,517