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Securities (Investments Classified by Contractual Maturity Date) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Sep. 30, 2011
Schedule of Investments [Line Items]      
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value $ 67    
Available For Sale Securities Debt Maturities Next Twelve Months Fair Value Yield 3.46%    
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value 4,769    
Available For Sale Securities Debt Maturities Year Two Through Five Years Fair Value Yield 2.41%    
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value 14,914    
Available For Sale Securities Debt Maturities Year Six Through Ten Years Fair Value Yield 3.31%    
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value 71,102    
Available For Sale Securities Debt Maturities After Ten Years Fair Value Yield 2.75%    
Available-for-sale Securities 90,852 88,765 88,083
Available For Sale Securities Total Fair Value Yield 2.86%    
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount 624    
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount Yield 0.75%    
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount 901    
Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount Yield 4.59%    
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount 808    
Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount Yield 4.87%    
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount 13,252    
Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount Yield 3.53%    
Securities held to maturity, Carrying amount 15,585 18,771 12,669
Held To Maturity Securities Total Carrying Amount Yield 3.55%    
US Government Agencies Debt Securities [Member]
     
Schedule of Investments [Line Items]      
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value 1,160    
Available For Sale Securities Debt Maturities Year Two Through Five Years Fair Value Yield 1.40%    
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value 8    
Available For Sale Securities Debt Maturities Year Six Through Ten Years Fair Value Yield 0.97%    
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value 882    
Available For Sale Securities Debt Maturities After Ten Years Fair Value Yield 3.69%    
Available-for-sale Securities 2,050 5,376  
Available For Sale Securities Total Fair Value Yield 2.38%    
US States and Political Subdivisions Debt Securities [Member]
     
Schedule of Investments [Line Items]      
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value 148    
Available For Sale Securities Debt Maturities Year Two Through Five Years Fair Value Yield 6.50%    
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value 10,077    
Available For Sale Securities Debt Maturities Year Six Through Ten Years Fair Value Yield 3.02%    
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value 4,190    
Available For Sale Securities Debt Maturities After Ten Years Fair Value Yield 2.42%    
Available-for-sale Securities 14,415 17,878  
Available For Sale Securities Total Fair Value Yield 3.26%    
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount 624    
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount Yield 0.75%    
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount 2,124    
Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount Yield 4.69%    
Securities held to maturity, Carrying amount 2,748 2,992  
Held To Maturity Securities Total Carrying Amount Yield 3.80%    
Residential Mortgage Backed Securities [Member]
     
Schedule of Investments [Line Items]      
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value 67    
Available For Sale Securities Debt Maturities Next Twelve Months Fair Value Yield 3.46%    
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value 102    
Available For Sale Securities Debt Maturities Year Two Through Five Years Fair Value Yield 3.35%    
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value 1,060    
Available For Sale Securities Debt Maturities Year Six Through Ten Years Fair Value Yield 4.56%    
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value 46,472    
Available For Sale Securities Debt Maturities After Ten Years Fair Value Yield 2.98%    
Available-for-sale Securities 47,701 57,924  
Available For Sale Securities Total Fair Value Yield 3.01%    
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount 901    
Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount Yield 4.59%    
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount 808    
Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount Yield 4.87%    
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount 8,450    
Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount Yield 2.65%    
Securities held to maturity, Carrying amount 10,159 13,083  
Held To Maturity Securities Total Carrying Amount Yield 3.00%    
Commercial Mortgage Backed Securities [Member]
     
Schedule of Investments [Line Items]      
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value 6,158    
Available For Sale Securities Debt Maturities After Ten Years Fair Value Yield 2.01%    
Available-for-sale Securities 6,158 210  
Available For Sale Securities Total Fair Value Yield 2.01%    
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount 2,678    
Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount Yield 5.40%    
Securities held to maturity, Carrying amount 2,678 2,696  
Held To Maturity Securities Total Carrying Amount Yield 5.40%    
Corporate Debt Securities [Member]
     
Schedule of Investments [Line Items]      
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value 3,359    
Available For Sale Securities Debt Maturities Year Two Through Five Years Fair Value Yield 2.55%    
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value 3,769    
Available For Sale Securities Debt Maturities Year Six Through Ten Years Fair Value Yield 3.73%    
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value 13,400    
Available For Sale Securities Debt Maturities After Ten Years Fair Value Yield 2.15%    
Available-for-sale Securities $ 20,528 $ 7,377  
Available For Sale Securities Total Fair Value Yield 2.51%