Consolidated Balance Sheets - Parenthetical - USD ($) $ in Thousands	Nov. 24, 2018	Aug. 25, 2018
Receivables, reserves	$ 11,926	$ 9,237
Accumulated depreciation	$ 767,605	$ 751,831
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common Stock
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Common stock, shares issued (in shares)	15,432,728	15,431,209
Common stock, shares outstanding (in shares)	15,432,728	15,431,209
Class B Common Stock
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	20,000,000	20,000,000
Common stock, shares issued (in shares)	3,710,009	3,710,009
Common stock, shares outstanding (in shares)	3,710,009	3,710,009