Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares	Mar. 09, 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)	29,401,370	29,134,603
Common stock, shares outstanding (in shares)	28,901,370	28,634,603
Treasury stock, shares (in shares)	500,000	500,000