Consolidated Statements of Shareholders’ Equity (USD $) In Thousands	Common Stock [Member] Nonemployee Benefit Plan [Member]	Common Stock [Member] Employee Stock Option [Member]	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member] Nonemployee Benefit Plan [Member]	Additional Paid-in Capital [Member] Employee Stock Option [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Nonemployee Benefit Plan [Member]	Employee Stock Option [Member]	Total
Balance in dollars at Aug. 25, 2010 (Scenario, Previously Reported [Member])			$ 9,168	$ (4,775)			$ 23,772	$ 136,872			$ 165,037
Balance in shares (in Shares) at Aug. 25, 2010 (Scenario, Previously Reported [Member])			28,651	(500)
Correction of prior years cumulative error at Aug. 26, 2010 (Scenario, Previously Reported [Member])								(160)			(160)
Balance in dollars at Aug. 31, 2011			9,168	(4,775)			23,772	136,712			164,877
Balance in shares (in Shares) at Aug. 31, 2011			28,651	(500)
Net income for the year								6,753			6,753
Increase/Decrease in excess tax benefits from share-based compensation							(27)				(27)
Share-based compensation expense			8				787				795
Share-based compensation expense in shares (in Shares)			26
Balance in dollars at Aug. 29, 2012			9,176	(4,775)			24,532	143,465			172,398
Balance in shares (in Shares) at Aug. 29, 2012			28,677	(500)
Net income for the year								3,161			3,161
Common stock issued in dollars	9				19				28
Common stock issued in shares (in Shares)	28
Common stock issued under employee benefits plans			26				350				376
Common stock issued under employee benefits plans in shares (in Shares)			80
Increase/Decrease in excess tax benefits from share-based compensation							64				64
Share-based compensation expense			6				1,100				1,106
Share-based compensation expense in shares (in Shares)			19
Balance in dollars at Aug. 28, 2013			9,217	(4,775)			26,065	146,626			177,133
Balance in shares (in Shares) at Aug. 28, 2013			28,804	(500)
Net income for the year								(3,447)			(3,447)
Common stock issued in dollars			10				17				27
Common stock issued in shares (in Shares)			31
Common stock issued under employee benefits plans		20				78				98
Common stock issued under employee benefits plans in shares (in Shares)		63
Increase/Decrease in excess tax benefits from share-based compensation							50				50
Share-based compensation expense			17				1,146				1,163
Share-based compensation expense in shares (in Shares)			52
Balance in dollars at Aug. 27, 2014			$ 9,264	$ (4,775)			$ 27,356	$ 143,179			$ 175,024
Balance in shares (in Shares) at Aug. 27, 2014			28,950	(500)