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FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details 3) (USD $)
In Thousands, unless otherwise specified
6 Months Ended 6 Months Ended
Jun. 30, 2012
Available for sale states and political subdivisions debt securities
Jun. 30, 2011
Available for sale states and political subdivisions debt securities
Jun. 30, 2012
Mortgage revenue bonds
item
Jun. 30, 2012
Mortgage revenue bonds
Weighted average
Jun. 30, 2011
Available for sale non-agency collateralized mortgage obligations
Dec. 31, 2010
Available for sale non-agency collateralized mortgage obligations
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis            
Balance at the beginning of the period $ 12,994 $ 12,619     $ 17 $ 17
Principal payments received (189) (176)        
Unrealized net gain included in other comprehensive income 74          
Balance at the end of the period 12,879 12,443     17 17
Additional disclosures            
Number of investment securities held     4      
Aggregate fair value $ 12,879 $ 12,443     $ 17 $ 17
Discount rate (as a percent)       2.71%