Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Mar. 29, 2020	Jun. 30, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 3,154,121	$ 269,844
Short-term investments	134,170	433,249
Marketable investment securities	5,646,551	7,029,916
Inventories	486,706	518,121
Prepaid expenses and other	98,217	740,476
Income taxes refundable	322,106	441,402
TOTAL CURRENT ASSETS	9,841,871	9,433,008
LAND, BUILDINGS & EQUIPMENT, net of accumulated depreciation of $40,908,439 and $41,706,408	17,900,928	18,141,526
OTHER ASSETS:
Right to use asset	1,852,765
Cash surrender value-life insurance	225,164	747,102
Other	65,115	67,315
TOTAL OTHER ASSETS	2,143,044	814,417
TOTAL ASSETS	29,885,843	28,388,951
CURRENT LIABILITIES:
Accounts payable	385,954	820,491
Accrued expenses	661,313	1,032,823
Dividends payable		903,170
Other current liabilities	2,394,398	308,794
TOTAL CURRENT LIABILITIES	3,441,665	3,065,278
Lease liability	1,711,184
DEFERRED INCOME TAXES	1,298,847	1,403,507
TOTAL LIABILITIES	6,451,696	4,468,785
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY
Preferred stock, par value $10 a share: Authorized and unissued, 2,000,000 shares
Additional paid-in capital	7,854,108	7,854,108
Retained earnings	15,063,942	15,549,961
TOTAL STOCKHOLDERS' EQUITY	23,434,147	23,920,166
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	29,885,843	28,388,951
Common Class A [Member]
STOCKHOLDERS' EQUITY
Common Stock	374,645	374,645
Common Class B [Member]
STOCKHOLDERS' EQUITY
Common Stock	$ 141,452	$ 141,452