Consolidated Balance Sheets (Parentheticals) - USD ($)	Feb. 25, 2018	Feb. 26, 2017
Accounts receivable, allowance for doubtful accounts	$ 259	$ 294
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized (in shares)	500,000	500,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	60,000,000	60,000,000
Common stock, shares issued (in shares)	20,965,144	20,965,144
Less treasury stock, shares (in shares)	723,573	730,473