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Stock Repurchase Program (Details Textual) (USD $)
Share data in Millions, unless otherwise specified
1 Months Ended 6 Months Ended 11 Months Ended
Aug. 31, 2011
Jul. 28, 2012
Jul. 28, 2012
Stock Repurchase Program (Textual) [Abstract]      
Stock repurchase plan authorized amount $ 40,000,000    
Shares repurchased and retired     3.4
Cost of Shares repurchased and retired   $ 16,622,000 $ 40,000,000