Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares shares in Thousands	Aug. 26, 2017	Feb. 25, 2017
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	1,000	1,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	900,000	900,000
Common stock, shares issued (in shares)	341,582	339,533
Common stock, shares outstanding (in shares)	143,242	146,274
Treasury stock, shares (in shares)	198,340	193,259