Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares	Jun. 01, 2016	Aug. 26, 2015
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.32	$ 0.32
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	29,420,690	29,134,603
Common stock, shares outstanding (in shares)	28,920,690	28,634,603
Treasury stock, shares (in shares)	500,000	500,000