Consolidated Statements of Stockholders' Equity - USD ($)	Common Stock [Member]	Capital in Excess of Par Value [Member]	Deferred Compensation [Member]	Retained Earnings [Member]	Total
Balance at Aug. 31, 2014	$ 290,889	$ 3,480,450	$ (24,644)	$ 9,367,580	$ 13,114,275
Balance, shares at Aug. 31, 2014	2,908,893
Net income (loss)				997,068	997,068
Restricted stock grants	$ 6	323	(329)
Restricted stock grants, shares	54
Restricted stock vesting		(24,973)	24,973
Stock option compensation		235,208			235,208
Restricted stock grants payment of withholding taxes	$ (51)	(2,863)			$ (2,914)
Restricted stock grants payment of withholding taxes, shares	(504)				18,443
Exercise of stock options and appreciation rights and payment of withholding taxes	$ 1,106	(4,674)			$ (3,568)
Exercise of stock options and appreciation rights and payment of withholding taxes, shares	11,057
Dividends paid				(465,337)	(465,337)
Balance at Aug. 30, 2015	$ 291,950	3,683,471		9,899,311	13,874,732
Balance, shares at Aug. 30, 2015	2,919,500
Net income (loss)				173,048	173,048
Stock option compensation		165,013			165,013
Dividends paid				(233,560)	(233,560)
Balance at Aug. 28, 2016	$ 291,950	3,848,484		9,838,799	13,979,233
Balance, shares at Aug. 28, 2016	2,919,500
Net income (loss)				(814,297)	(814,297)
Restricted stock grants	$ 5,000	148,000	(153,000)
Restricted stock grants, shares	50,000
Restricted stock vesting		(76,500)	76,500
Stock option compensation		301,726			301,726
Restricted stock grants payment of withholding taxes	$ (973)	(28,786)			(29,759)
Restricted stock grants payment of withholding taxes, shares	(9,725)
Exercise of stock options and appreciation rights and payment of withholding taxes	$ 17	(346)			(329)
Exercise of stock options and appreciation rights and payment of withholding taxes, shares	165
Balance at Aug. 27, 2017	$ 295,994	$ 4,192,578	$ (76,500)	$ 9,024,502	$ 13,436,574
Balance, shares at Aug. 27, 2017	2,959,940