Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Mar. 31, 2013	Jul. 01, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 4,499,396	$ 2,332,022
Short-term investments	948,724	3,863,721
Inventories	523,326	535,412
Prepaid expenses and other	627,752	613,891
Income taxes refundable		313,518
TOTAL CURRENT ASSETS	6,599,198	7,658,564
LAND, BUILDINGS & EQUIPMENT
Net of accumulated depreciation of $39,071,548 and $38,021,911	22,316,671	22,718,526
OTHER ASSETS:
Marketable securities	8,616,693	8,286,680
Cash surrender value-life insurance	619,624	619,624
Other	84,780	84,780
TOTAL OTHER ASSETS	9,321,097	8,991,084
TOTAL ASSETS	38,236,966	39,368,174
CURRENT LIABILITIES:
Accounts payable	688,116	722,380
Accrued expenses	885,133	1,004,221
Dividends payable	849,992	824,235
Income taxes payable	223,362
Other current liabilities	2,419,460	295,978
Current deferred income taxes	65,552	65,552
TOTAL CURRENT LIABILITIES	5,131,615	2,912,366
LONG-TERM DEFERRED COMPENSATION	44,217	44,217
NONCURRENT DEFERRED INCOME TAXES	2,814,948	2,726,437
TOTAL LIABILITIES	7,990,780	5,683,020
STOCKHOLDERS' EQUITY
Preferred stock, par value $10 a share: Authorized and unissued, 2,000,000 shares	0	0
Unrealized gain on available-for-sale securities, net of tax	2,682,619	2,538,818
Retained earnings	19,321,156	22,903,925
Additional paid-in capital	7,727,264	7,727,264
TOTAL STOCKHOLDERS' EQUITY	30,246,186	33,685,154
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	38,236,966	39,368,174
Common Class A [Member]
STOCKHOLDERS' EQUITY
Common stock	373,695	368,301
Common Class B [Member]
STOCKHOLDERS' EQUITY
Common stock	$ 141,452	$ 146,846