Quarterly report pursuant to Section 13 or 15(d)

Available-for-Sale and Other Securities (Credit Ratings) (Details 2)

v2.4.0.6
Available-for-Sale and Other Securities (Credit Ratings) (Details 2) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Schedule of Credit Rating by Investment Security Type [Line Items]    
Amortized Cost $ 332,768 $ 342,867
Fair Value 195,928 194,062
AAA [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 0 [1] 1,045 [1]
AA +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 24,364 [1] 23,353 [1]
A +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 49,782 [1] 52,935 [1]
BBB +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 5,850 [1] 6,858 [1]
Less Than BBB- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 115,932 [1] 109,871 [1]
Alt-A Mortgage-backed [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Amortized Cost 55,332  
Fair Value 48,663  
Alt-A Mortgage-backed [Member] | AAA [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 0 [1]  
Alt-A Mortgage-backed [Member] | AA +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 24,364 [1]  
Alt-A Mortgage-backed [Member] | A +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 6,374 [1]  
Alt-A Mortgage-backed [Member] | BBB +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 0 [1]  
Alt-A Mortgage-backed [Member] | Less Than BBB- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 17,925 [1]  
Pooled Trust Preferred [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Amortized Cost 199,144  
Fair Value 77,034  
Pooled Trust Preferred [Member] | AAA [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 0 [1]  
Pooled Trust Preferred [Member] | AA +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 0 [1]  
Pooled Trust Preferred [Member] | A +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 21,745 [1]  
Pooled Trust Preferred [Member] | BBB +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 0 [1]  
Pooled Trust Preferred [Member] | Less Than BBB- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 55,289 [1]  
Private label CMO [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Amortized Cost 78,292  
Fair Value 70,231  
Private label CMO [Member] | AAA [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 0 [1]  
Private label CMO [Member] | AA +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 0 [1]  
Private label CMO [Member] | A +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 21,663 [1]  
Private label CMO [Member] | BBB +/- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value 5,850 [1]  
Private label CMO [Member] | Less Than BBB- [Member]
    
Schedule of Credit Rating by Investment Security Type [Line Items]    
Fair Value $ 42,718 [1]  
[1]  Credit ratings reflect the lowest current rating assigned by a nationally recognized credit rating agency.