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.