Consolidated Statements of Income - USD ($)	12 Months Ended
	Aug. 28, 2016	Aug. 30, 2015	Aug. 31, 2014
Income Statement [Abstract]
Net sales (Note 8)	$ 35,215,984	$ 42,982,937	$ 42,714,240
Cost of products sold	32,291,726	38,658,881	37,319,981
Gross margin	2,924,258	4,324,056	5,394,259
Selling and administrative expense	3,011,651	2,971,576	3,076,663
Interest and other income	(21,606)	(5,601)	(5,404)
Interest expense	308,461	346,297	410,165
Total expense	3,298,506	3,312,272	3,481,424
Income (loss) before income taxes	(374,248)	1,011,784	1,912,835
Income tax expense (benefit) (Note 6)	(547,296)	14,716	688,711
Net income	$ 173,048	$ 997,068	$ 1,224,124
Basic earnings per share	$ .06	$ .34	$ .42
Diluted earnings per share	.06	.34	.41
Cash dividend per share	$ .08	$ .16	$ .16
Weighted average number of common shares outstanding, basic	2,919,500	2,910,426	2,899,576
Weighted average number of common shares outstanding, diluted	2,928,126	2,960,398	2,964,384