Consolidated Statement of Shareholders’ Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance at Aug. 29, 2012	$ 9,176	$ (4,775)	$ 24,532	$ 143,465	$ 172,398
Balance (in Shares) at Aug. 29, 2012	28,677	(500)
Net income for the year				3,161	3,161
Common stock issued under nonemployee director benefit plans - Shares	$ 9		19		28
Common stock issued under nonemployee director benefit plans - Amount (in Shares)	28
Common stock issued under employee benefit plans - Shares	$ 26		350		376
Common stock issued under employee benefit plans (in Shares)	80
Increase in excess tax benefits from share-based compensation			64		64
Share-based compensation expense - Shares	$ 6		1,100		1,106
Share-based compensation expense- Amount (in Shares)	19
Balance at Aug. 28, 2013	$ 9,217	$ (4,775)	26,065	146,626	177,133
Balance (in Shares) at Aug. 28, 2013	28,804	(500)
Net income for the year				(3,447)	(3,447)
Common stock issued under nonemployee director benefit plans - Shares	$ 10		17		27
Common stock issued under nonemployee director benefit plans - Amount (in Shares)	31
Common stock issued under employee benefit plans - Shares	$ 20		78		98
Common stock issued under employee benefit plans (in Shares)	63
Increase in excess tax benefits from share-based compensation			50		50
Share-based compensation expense - Shares	$ 17		1,146		1,163
Share-based compensation expense- Amount (in Shares)	52
Balance at Aug. 27, 2014	$ 9,264	$ (4,775)	27,356	143,179	175,024
Balance (in Shares) at Aug. 27, 2014	28,950	(500)
Net income for the year				(2,074)	(2,074)
Common stock issued under nonemployee director benefit plans - Shares	$ 13		(13)
Common stock issued under nonemployee director benefit plans - Amount (in Shares)	40
Common stock issued under employee benefit plans - Shares	$ 26		164		190
Common stock issued under employee benefit plans (in Shares)	82
Increase in excess tax benefits from share-based compensation			5		5
Share-based compensation expense - Shares	$ 20		1,494		1,514
Share-based compensation expense- Amount (in Shares)	63
Balance at Aug. 26, 2015	$ 9,323	$ (4,775)	$ 29,006	$ 141,105	$ 174,659
Balance (in Shares) at Aug. 26, 2015	29,135	(500)