Interim Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Jul. 23, 2011	Feb. 05, 2011
Stockholders Equity Including Portion Attributable To Noncontrolling Interest [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.00	$ 0.00
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.40	$ 0.40
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares outstanding (in shares)	9,139,527	9,129,013
Treasury stock, at cost (in shares)	2,097,043	2,133,566
Series A Preferred Stock [Member]
Stockholders Equity Including Portion Attributable To Noncontrolling Interest [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.00	$ 0.00
Preferred stock, shares authorized (in shares)	200,000	200,000
Preferred stock, outstanding (in shares)	0	0