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CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Assets    
Held to maturity, fair value $ 718 $ 976
Equity:    
Common stock, no par value (in dollars per share) $ 0 $ 0
Common stock, shares authorized (in shares) 185,000,000 185,000,000
Common stock, shares issued (in shares) 41,747,020 41,749,116
Common stock, shares outstanding (in shares) 41,747,020 41,749,116