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Earnings Per Share (Details)
3 Months Ended9 Months Ended
Oct. 29, 2011
Oct. 30, 2010
Oct. 29, 2011
Oct. 30, 2010
Jul. 31, 2010
Weighted average shares used to calculate basic and diluted earnings per share     
Weighted average shares outstanding for basic EPS27,828,00027,534,00027,733,00027,529,000 
Dilutive effect of common stock equivalents144,000315,000220,000302,000 
Weighted average shares outstanding for diluted EPS27,972,00027,849,00027,953,00027,831,000 
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]     
Anti-dilutive securities excluded from EPS computation0 0  
Stockholders Equity Note Stock Split Conversion Percent    50.00%
Restricted Stock Units [Member]
     
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]     
Anti-dilutive securities excluded from EPS computation 0 63,600