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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Net income $ 10,389 $ 4,892 $ 444
Unrealized gain on securities:      
Unrealized holding gains arising during the period 1    
Other comprehensive income 1    
Comprehensive income $ 10,390 $ 4,892 $ 444