Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Mar. 31, 2013	Apr. 01, 2012
Cash Flows From Operating Activities
Net earnings	$ 1,542,945	$ 1,395,251
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	1,141,143	1,200,535
Changes in assets and liabilities
Decrease (increase) in inventories	12,086	(18,128)
(Increase) decrease in prepaid & other	(13,861)	86,405
Decrease in income taxes refundable	313,518	275,847
Decrease in other long-term assets		1,000
Decrease in accounts payable	(34,264)	(39,114)
Decrease in accrued expenses	(119,088)	(321,532)
Increase in income taxes payable	223,362	101,512
Increase in other current liabilities	2,123,482	2,032,736
Net cash provided by operating activities	5,189,323	4,714,512
Cash Flows From Investing Activities
Expenditures for land, building and equip	(739,288)	(1,492,348)
Net sales & maturities of short-term investments	2,914,997	1,634,096
Purchases of marketable securities	(97,701)	(309,663)
Net cash provided by (used in) Investing activities	2,078,008	(167,915)
Cash Flows From Financing Activities
Payment of cash dividends	(5,099,957)	(2,472,706)
Net cash used in financing activities	(5,099,957)	(2,472,706)
Net Increase in Cash and Equivalents	2,167,374	2,073,891
Cash and Equivalents, Beginning of period	2,332,022	2,361,846
Cash and Equivalents, End of period	4,499,396	4,435,737
Cash Paid During the Period for:
Income taxes	$ 293,920	$ 256,041