XML 16 R33.htm IDEA: XBRL DOCUMENT v2.4.0.6
Investment Securities (Other Disclosures) (Details) (USD $)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]      
FHLB stock $ 5,200,000   $ 6,300,000
FRBR stock 3,100,000   3,100,000
Investment securities portfolio available as lendable collateral 446,900,000    
Book value of securities sold 145,900,000 10,800,000  
Gain on securities sold 2,377,000 (46,000)  
Deposits [Member]
     
Schedule of Available-for-sale Securities [Line Items]      
Investment securities portfolio pledged as collateral 102,700,000    
Retail repurchase agreements [Member]
     
Schedule of Available-for-sale Securities [Line Items]      
Investment securities portfolio pledged as collateral 13,900,000    
Others [Member]
     
Schedule of Available-for-sale Securities [Line Items]      
Investment securities portfolio pledged as collateral $ 2,100,000