Note 6 - Income Taxes (Details) - Reconciliation of the Expense (Benefit) for Income Taxes (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 28, 2013	Aug. 29, 2012	Aug. 31, 2011
Reconciliation of the Expense (Benefit) for Income Taxes [Abstract]
Income tax expense (benefit) from continuing operations at the federal rate (in Dollars)	$ 2,060	$ 3,150	$ 1,063
Income tax expense (benefit) from continuing operations at the federal rate	34.00%	34.00%	34.00%
Federal jobs tax credits (wage deductions) (in Dollars)	355	217	332
Federal jobs tax credits (wage deductions)	5.80%	2.30%	10.60%
Stock options and restricted stock (in Dollars)	50	141	160
Stock options and restricted stock	0.80%	1.50%	5.10%
Other permanent differences (in Dollars)	68	128	51
Other permanent differences	1.10%	1.40%	1.60%
State income tax, net of federal benefit (in Dollars)	338	1,411	349
State income tax, net of federal benefit	5.60%	15.20%	11.20%
General Business Tax Credits (in Dollars)	(1,043)	(639)	(977)
General Business Tax Credits	(17.20%)	(6.90%)	(31.20%)
Other (in Dollars)	11	(63)	48
Other	0.20%	(0.70%)	1.50%
Change in valuation allowance (in Dollars)		(2,639)	(478)
Change in valuation allowance		(28.40%)	(15.30%)
Income tax expense from continuing operations (in Dollars)	$ 1,839	$ 1,706	$ 548
Income tax expense from continuing operations	30.30%	18.40%	17.50%