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Investment Securities (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Available for sale securities:    
Available-for-Sale Securities, Amortized Cost $ 258,991 $ 225,682
Available-for-Sale Securities, Gross Unrealized Gains 12,399 10,034
Available-for-Sale Securities, Gross Unrealized Losses (2,292) (2,797)
Available-for-Sale Securities, Fair Value 269,098 232,919
Held to maturity securities:    
Held-to-Maturity Securities, Amortized Cost 585 [1] 661 [1]
Held-To-Maturity Securities, Gross Unrealized Gains 10 [1] 11 [1]
Held-To-Maturity Securities, Gross Unrealized Losses 0 [1] 0 [1]
Held-To-Maturity Securities, Fair Value 595 [1] 672 [1]
Federal Home Loan Mortgage Corporation Certificates and Obligations (Fhlmc) [Member]
   
Held to maturity securities:    
Held-to-Maturity Securities, Amortized Cost 72 [1] 82 [1]
Held-To-Maturity Securities, Gross Unrealized Gains 0 [1] 1 [1]
Held-To-Maturity Securities, Gross Unrealized Losses 0 [1] 0 [1]
Held-To-Maturity Securities, Fair Value 72 [1] 83 [1]
Federal National Mortgage Association Certificates and Obligations (Fnma) [Member]
   
Held to maturity securities:    
Held-to-Maturity Securities, Amortized Cost 173 [1] 199 [1]
Held-To-Maturity Securities, Gross Unrealized Gains 6 [1] 4 [1]
Held-To-Maturity Securities, Gross Unrealized Losses 0 [1] 0 [1]
Held-To-Maturity Securities, Fair Value 179 [1] 203 [1]
Government National Mortgage Association Certificates and Obligations (Gnma) [Member]
   
Held to maturity securities:    
Held-to-Maturity Securities, Amortized Cost 63 [1] 72 [1]
Held-To-Maturity Securities, Gross Unrealized Gains 3 [1] 3 [1]
Held-To-Maturity Securities, Gross Unrealized Losses 0 [1] 0 [1]
Held-To-Maturity Securities, Fair Value 66 [1] 75 [1]
Us Government Corporations and Agencies Securities [Member]
   
Available for sale securities:    
Available-for-Sale Securities, Amortized Cost 21,497 16,989
Available-for-Sale Securities, Gross Unrealized Gains 152 96
Available-for-Sale Securities, Gross Unrealized Losses 0 0
Available-for-Sale Securities, Fair Value 21,649 17,085
Us Treasury Securities [Member]
   
Available for sale securities:    
Available-for-Sale Securities, Amortized Cost 2,000 2,000
Available-for-Sale Securities, Gross Unrealized Gains 4 10
Available-for-Sale Securities, Gross Unrealized Losses 0 0
Available-for-Sale Securities, Fair Value 2,004 2,010
Residential Mortgage Backed Securities [Member]
   
Available for sale securities:    
Available-for-Sale Securities, Amortized Cost 82,023 68,400
Available-for-Sale Securities, Gross Unrealized Gains 3,472 2,318
Available-for-Sale Securities, Gross Unrealized Losses 0 (2)
Available-for-Sale Securities, Fair Value 85,495 70,716
Real Estate Mortgage Investment Conduits [Member]
   
Available for sale securities:    
Available-for-Sale Securities, Amortized Cost 0 2,863
Available-for-Sale Securities, Gross Unrealized Gains 0 31
Available-for-Sale Securities, Gross Unrealized Losses 0 0
Available-for-Sale Securities, Fair Value 0 2,894
Collateralized Mortgage Backed Securities [Member]
   
Available for sale securities:    
Available-for-Sale Securities, Amortized Cost 63,227 57,083
Available-for-Sale Securities, Gross Unrealized Gains 1,815 1,926
Available-for-Sale Securities, Gross Unrealized Losses (12) 0
Available-for-Sale Securities, Fair Value 65,030 59,009
Trust Preferred Securities and Preferred Stock [Member]
   
Available for sale securities:    
Available-for-Sale Securities, Amortized Cost 3,604 3,790
Available-for-Sale Securities, Gross Unrealized Gains 35 73
Available-for-Sale Securities, Gross Unrealized Losses (2,262) (2,413)
Available-for-Sale Securities, Fair Value 1,377 1,450
Corporate Bond Securities [Member]
   
Available for sale securities:    
Available-for-Sale Securities, Amortized Cost 8,673 8,629
Available-for-Sale Securities, Gross Unrealized Gains 86 0
Available-for-Sale Securities, Gross Unrealized Losses (149) (377)
Available-for-Sale Securities, Fair Value 8,849 8,252
Us States and Political Subdivisions Debt Securities [Member]
   
Available for sale securities:    
Available-for-Sale Securities, Amortized Cost 77,945 65,928
Available-for-Sale Securities, Gross Unrealized Gains 6,754 5,580
Available-for-Sale Securities, Gross Unrealized Losses (5) (5)
Available-for-Sale Securities, Fair Value 84,694 71,503
Held to maturity securities:    
Held-to-Maturity Securities, Amortized Cost 277 [1] 308 [1]
Held-To-Maturity Securities, Gross Unrealized Gains 1 [1] 3 [1]
Held-To-Maturity Securities, Gross Unrealized Losses 0 [1] 0 [1]
Held-To-Maturity Securities, Fair Value $ 278 [1] $ 311 [1]
[1] FHLMC, FNMA, and GNMA certificates are residential mortgage-backed securities.