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Consolidated Statements of Financial Condition (Parenthetical) (Parent Company, USD $)
Dec. 31, 2011
Dec. 31, 2010
Parent Company
    
Stockholder's equity:    
Common stock, par value $ 0.01 $ 0.01
Common stock, authorized shares 49,000,000 49,000,000
Common stock, issued shares 23,211,846 23,211,846
Common stock, outstanding shares 22,105,499 22,122,678
Treasury Stock Shares 1,106,347 1,089,168