Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jan. 01, 2017	Dec. 27, 2015
Cash Flows From Operating Activities
Net earnings	$ 695,186	$ 360,825
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	567,892	674,782
Loss on involuntary cancellation of available-for-sale securities	5,845
Gain on sale of available-for-sale securities		(24,299)
Changes in assets and liabilities
Decrease (increase) in inventories	7,265	(43,756)
Decrease in prepaid & other	240,828	299,076
Increase in income taxes refundable		(6,700)
(Increase) decrease in other long-term assets
Decrease in accounts payable	(152,617)	(173,446)
Decrease in accrued expenses	(549,138)	(273,289)
Decrease in income taxes payable	(252,800)
Increase in other current liabilities	1,296,409	1,372,822
Net cash provided by operating activities	1,858,870	2,186,015
Cash Flows From Investing Activities
Expenditures for land, building and equip	(170,629)	(112,279)
Net sales & maturities (purchases) of short-term investments	(1,748)	(25)
Proceeds from sale of available-for-sale securities		1,000,000
Purchases of marketable securities	(49,677)	(35,953)
Net cash provided by (used in) Investing activities	(222,054)	851,743
Cash Flows From Financing Activities
Proceeds from note payable	500,000
Payment of cash dividends	(1,754,730)	(1,754,730)
Net cash used in financing activities	(1,254,730)	(1,754,730)
Net Increase in Cash and Equivalents	382,086	1,283,028
Cash and Equivalents, Beginning of period	986,193	778,367
Cash and Equivalents, End of period	1,368,279	2,061,395
Supplemental Disclosures of Cash Flow Information Cash Paid During the Period for:
Interest	5,316
Income taxes	$ 627,100	$ 201,000