LOANS, Troubled Debt Restructurings (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Troubled Debt Restructuring On Receivables [Abstract]
Number of Contracts	22	22
Recorded Investment	$ 51,123	$ 48,753
Financing Receivables Modification Accrual Status Number Of Contracts	20	17
Financing Receivable Modification Recorded Investment In Accrual Status	44,858	40,688
Financing Receivables Modification Non Accrual Status Number Of Contracts	2	5
Financing Receivable Modification Recorded Investment In Non Accrual Status	6,265	8,065
Summary of activity related to TDRs for the period [Abstract]
Troubled Debt Restructuring, Write-down	235
Number of troubled debt restructured loans disposed of in period with charge offs recognized	9
Trouble debt Restructuring Allowance For Loan And Lease Losses Write Offs	1,096
Allocated Reserves Recognized For Trouble Debt Restructuring Receivables That Defaulted	520	1,851
One-to Four-Family Residential and Cooperative Unit [Member]
Troubled Debt Restructuring On Receivables [Abstract]
Number of Contracts	3	2
Recorded Investment	948	625
Summary of activity related to TDRs for the period [Abstract]
Financing Receivable Modifications Number Of Contracts In Period	1	0
Pre-Modification Outstanding Recorded Investment	330	0
Post-Modification Outstanding Recorded Investment	330	0
Multifamily Residential and Residential Mixed Use [Member]
Troubled Debt Restructuring On Receivables [Abstract]
Number of Contracts	5	5
Recorded Investment	1,953	2,013
Summary of activity related to TDRs for the period [Abstract]
Financing Receivable Modifications Number Of Contracts In Period	1	2
Pre-Modification Outstanding Recorded Investment	459	573
Post-Modification Outstanding Recorded Investment	459	573
Mixed Use Commercial Real Estate [Member]
Troubled Debt Restructuring On Receivables [Abstract]
Number of Contracts	1	3
Recorded Investment	729	1,657
Commercial Real Estate [Member]
Troubled Debt Restructuring On Receivables [Abstract]
Number of Contracts	13	12
Recorded Investment	47,493	44,458
Summary of activity related to TDRs for the period [Abstract]
Financing Receivable Modifications Number Of Contracts In Period	2	6
Pre-Modification Outstanding Recorded Investment	4,430	30,095
Post-Modification Outstanding Recorded Investment	4,430	30,095
Total Real Estate Loans Receivable [Member]
Summary of activity related to TDRs for the period [Abstract]
Financing Receivable Modifications Number Of Contracts In Period	4	8
Pre-Modification Outstanding Recorded Investment	5,219	30,668
Post-Modification Outstanding Recorded Investment	$ 5,219	$ 30,668