Consolidated Balance Sheets - USD ($)	Jul. 01, 2018	Jul. 02, 2017
CURRENT ASSETS:
Cash and cash equivalents (Note 2)	$ 1,008,433	$ 604,671
Short-term investments (Note 3)	2,157,875	2,951,315
Inventories	490,456	534,741
Prepaid expenses and other	760,561	555,687
Income taxes refundable	192,298
TOTAL CURRENT ASSETS	4,609,623	4,646,414
LAND, BUILDINGS & EQUIPMENT, net (Note 4)	18,698,651	18,860,778
OTHER ASSETS:
Marketable investment securities (Note 3)	4,816,804	5,272,318
Cash surrender value-life insurance	717,733	772,326
Other	66,315	66,315
TOTAL OTHER ASSETS	5,600,852	6,110,959
TOTAL ASSETS	28,909,126	29,618,151
CURRENT LIABILITIES:
Accounts payable	806,487	673,786
Accrued expenses	1,107,226	1,069,668
Dividends payable	877,365	877,365
Income taxes payable		22,543
Other current liabilities	305,236	342,324
TOTAL CURRENT LIABILITIES	3,096,314	2,985,686
LONG-TERM DEFERRED COMPENSATION	17,440	18,413
DEFERRED INCOME TAXES (Note 7)	1,311,697	2,027,659
TOTAL LIABILITIES	4,425,451	5,031,758
COMMITMENTS AND CONTINGENCIES (Note 5)
STOCKHOLDERS' EQUITY (Note 8)
Preferred stock, par value $10 a share: Authorized and unissued, 2,000,000 shares
Additional paid-in capital	7,854,108	7,854,108
Accumulated other comprehensive earnings- Unrealized gain on available-for-sale securities, net of tax	2,102,745	2,481,988
Retained earnings	14,010,725	13,734,200
TOTAL STOCKHOLDERS'EQUITY	24,483,675	24,586,393
TOTAL LIABILITIES AND STOCKHOLDERS'EQUITY	28,909,126	29,618,151
Common Class A [Member]
STOCKHOLDERS' EQUITY (Note 8)
Common Stock	374,645	374,645
Common Class B [Member]
STOCKHOLDERS' EQUITY (Note 8)
Common Stock	$ 141,452	$ 141,452