Consolidated Balance Sheets (Parenthetical) - $ / shares	Aug. 31, 2019	Aug. 25, 2018
Common Stock [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	25,445,000	27,530,000
Common stock, shares outstanding	24,038,000	25,742,000
Preferred Stock [Member]
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0