INVESTMENT AND MORTGAGE-BACKED SECURITIES (Details) (USD $)
In Thousands, unless otherwise specified
 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2011
Sep. 30, 2012
Credit Related Otti [Member]
Sep. 30, 2011
Credit Related Otti [Member]
Sep. 30, 2012
Credit Related Otti [Member]
Sep. 30, 2011
Credit Related Otti [Member]
Sep. 30, 2012
Non Credit Related Otti [Member]
Sep. 30, 2011
Non Credit Related Otti [Member]
Sep. 30, 2012
Non Credit Related Otti [Member]
Sep. 30, 2011
Non Credit Related Otti [Member]
Sep. 30, 2012
Total Credit and Non Credit Otti [Member]
Sep. 30, 2011
Total Credit and Non Credit Otti [Member]
Sep. 30, 2012
Total Credit and Non Credit Otti [Member]
Sep. 30, 2011
Total Credit and Non Credit Otti [Member]
Sep. 30, 2012
Pooled Trust Preferred Held To Maturity Securities TRUPS [Member]
Dec. 31, 2011
Pooled Trust Preferred Held To Maturity Securities TRUPS [Member]
Sep. 30, 2012
Registered Mutual Funds Available For Sale [Member]
Dec. 31, 2011
Registered Mutual Funds Available For Sale [Member]
Sep. 30, 2012
Agency Notes [Member]
Dec. 31, 2011
Agency Notes [Member]
Sep. 30, 2012
Pass Through MBS Issued by GSEs [Member]
Dec. 31, 2011
Pass Through MBS Issued by GSEs [Member]
Sep. 30, 2012
Collateralized Mortgage Obligations Issued By GSEs [Member]
Dec. 31, 2011
Collateralized Mortgage Obligations Issued By GSEs [Member]
Sep. 30, 2012
Private Issuer Pass Through MBS [Member]
Dec. 31, 2011
Private Issuer Pass Through MBS [Member]
Sep. 30, 2012
Private Issuer CMOs [Member]
Dec. 31, 2011
Private Issuer CMOs [Member]
Sep. 30, 2012
All Mortgage Backed Securities available for sale [Member]
Investment Securities Held To Maturity [Abstract]                                                            
Purchase Amortized / Historical Cost $ 16,846   $ 17,884                                                      
Recorded Amortized/Historical Cost 7,901 [1]   8,910 [1]                                                      
Non-Credit OTTI (642)   (929)                                                      
Unrealized Gains 0   0                                                      
Unrealized Losses (1,303) [2]   (1,470) [2]                                                      
Book Value 5,956   6,511                                                      
Other Unrealized Gains (Losses) 288   (1,587)                                                      
Fair value 6,244   4,924                                                      
Investment Securities Available For Sale [Abstract]                                                            
Purchase Amortized / Historical Cost                                   5,123 5,049 49,818 170,362 49,239 71,008 26,824 15,128 1,068 1,614 1,015 1,400  
Recorded Amortized/Historical Cost                                   3,698 [1] 3,624 [1] 49,818 [1] 170,362 [1] 49,239 [1] 71,008 [1] 26,824 [1] 15,128 [1] 1,068 [1] 1,614 [1] 1,015 [1] 1,400 [1]  
Non-Credit OTTI                                   0 0 0 0 0 0 0 0 0 0 0 0  
Unrealized Gains                                   1,341 935 169 37 3,509 4,554 136 261 0 0 25 22  
Unrealized Losses                                   0 0 0 (90) 0 0 0 0 (24) (110) 0 0  
Book Value                                   5,039 4,559 49,987 170,309 52,748 75,562 26,960 15,389 1,044 1,504 1,040 1,422  
Other Unrealized Losses                                   0 0 0 0 0 0 0 0 0 0 0 0  
Fair Value 49,987                                 5,039 4,559 49,987 170,309 52,748 75,562 26,960 15,389 1,044 1,504 1,040 1,422  
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]                                                            
Due Less Than 12 Months, Amortized Cost 0                                                          
Due After One Year Through Five Years, Amortized Cost 49,818                                                          
Due After Five Years Through Ten Years, Amortized Cost 0                                                          
Amortized Cost, Total 49,818                                                          
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]                                                            
Due Less than 12 Months, Fair Value 0                                                          
Due After One Year Through Five Years, Estimated Fair Value 49,987                                                          
Due After Five Years Through Ten Years, Estimated Fair Value 0                                                          
Fair Value 49,987                                 5,039 4,559 49,987 170,309 52,748 75,562 26,960 15,389 1,044 1,504 1,040 1,422  
Available For Sale And Held To Maturity Securities Other Disclosures [Abstract]                                                            
Securities Weighted Average Term To Maturity (in years)                               22 years 3 months 18 days                           20 years 2 months 12 days
Weighted average duration of mortgage backed securities available for sale                                                           1 year 2 months 12 days
Proceeds from sales of investment securities available-for-sale 313 226                                                        
Other Than Temporary Impairment Credit And Non Credit Losses Recognized In earnings And Other Comprehensive Loss [Abstract]                                                            
Other Than Temporary Impairment Credit And Non Credit Losses Recognized In Earnings And OCI Losses On Debt Securities Held       8,945 8,883 8,974 8,247 655 951 930 2,203 9,600 9,834 9,904 10,450                              
Other Than Temporary Impairment Credit And Non Credit Losses Recognized In Earnings And OCI Additions Additional Losses       0 59 181 695 0 24 6 25 0 83 187 720                              
Other Than Temporary Impairment Credit And Non Credit Losses Recognized In Earnings And O C I Reductions Change In Status       0 0 0 0 0 0 (181) (1,245) 0 0 (181) (1,245)                              
Other Than Temporary Impairment Credit And Non Credit Losses Recognized In Earnings And OCI Amortization Of OTTI       0 0 (210) 0 (14) (9) (114) (17) (14) (9) (324) (17)                              
Other Than Temporary Impairment Credit And Non Credit Losses Recognized In Earnings And OCI Losses On Debt Securities Held       8,945 8,942 8,945 8,942 641 966 641 966 9,586 9,908 9,586 9,908                              
Held To Maturity Securities With No OTTI Number of Securities 2                                                          
Held To Maturity Securities With No OTTI 5,510                                                          
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]                                                            
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value, Total                               3,672 [3] 4,924 [4]                          
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value                               3,672 [3] 4,924 [4]                          
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value                               0 [3] 0 [4]                          
Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]                                                            
Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total                               1,838 [3] 3,986 [4]                          
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses                               1,838 [3] 3,986 [4]                          
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses                               0 [3] 0 [4]                          
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]                                                            
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total                                         114,885         1,044 1,505      
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value                                         0         1,044 1,505      
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value                                         114,885         0 0      
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract]                                                            
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total                                         90         24 109      
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses                                         0         24 109      
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses                                         90         0 0      
Private Issuer Pass Through MBs Amortized Cost $ 1,068                                                          
[1] (1) Amount represents the purchase amortized / historical cost less any credit-related OTTI charges recognized through earnings.
[2] (2) Amount represents the unamortized portion of the unrealized loss that was recognized in accumulated other comprehensive loss on September 1, 2008 (the day on which these securities were transferred from available-for-sale to held-to-maturity).
[3] (1) At September 30, 2012, the recorded balance of these securities was $4,207. This balance reflected the remaining unrealized loss of $1,303 that was recognized in accumulated other comprehensive loss on September 1, 2008 (the day on which these securities were transferred from available-for-sale to held-to-maturity). In accordance with both ASC 320-10-35-17 and 320-10-65, these unrealized losses are currently being amortized over the remaining estimated life of these securities.
[4] (1) At December 31, 2011, the recorded balance of these securities was $6,511. This balance reflected both the remaining unrealized loss of $1,470 that was recognized in accumulated other comprehensive loss on September 1, 2008 (the day on which these securities were transferred from available-for-sale to held-to-maturity) for two TRUPS that have not been deemed OTTI, and an unrealized loss of $929 that has been recognized in accumulated other comprehensive loss that represents the non-credit component of impairment for six TRUPS that have been deemed OTTI. In accordance with both ASC 320-10-35-17 and 320-10-65, these unrealized losses are currently being amortized over the remaining estimated life of these securities.