LOANS RECEIVABLE AND CREDIT QUALITY, Troubled Debt Restructurings (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended	3 Months Ended
	Jun. 30, 2014 Loan	Jun. 30, 2013 Loan	Dec. 31, 2013 Loan	Jun. 30, 2014 One To Four Family Residential And Cooperative Unit Allowance [Member] Loan	Dec. 31, 2013 One To Four Family Residential And Cooperative Unit Allowance [Member] Loan	Jun. 30, 2014 Multifamily Residential and Residential Mixed Use [Member] Loan	Dec. 31, 2013 Multifamily Residential and Residential Mixed Use [Member] Loan	Jun. 30, 2014 Mixed Use Commercial Real Estate [Member] Loan	Jun. 30, 2014 Mixed Use Commercial Real Estate [Member] Loan	Dec. 31, 2013 Mixed Use Commercial Real Estate [Member] Loan	Jun. 30, 2014 Commercial Real Estate [Member] Loan	Jun. 30, 2014 Commercial Real Estate [Member] Loan	Dec. 31, 2013 Commercial Real Estate [Member] Loan	Jun. 30, 2014 Total Real Estate Loans [Member]
Troubled Debt Restructuring On Receivables [Abstract]
Financing Receivable, Modifications, Number of Contracts	11		12	2	3	4	4		1	0		4	5
Financing Receivable, Modifications, Recorded Investment	$ 18,215		$ 24,327	$ 609	$ 934	$ 1,126	$ 1,148	$ 4,400	$ 4,400	$ 0	$ 12,080	$ 12,080	$ 22,245
Financing Receivables Modification Accrual Status Number Of Contracts	8		10
Financing Receivable Modification Recorded Investment In Accrual Status	8,768		18,620
Financing Receivables Modification Non Accrual Status Number Of Contracts	3		2
Financing Receivable Modification Recorded Investment In Non Accrual Status	9,447		5,707
Financing Receivable Modifications Number Of Contracts In Period	0							1	1			0
Financing Receivable Modifications Pre Modification Recorded Investment In Period								4,400	4,400
Financing Receivable Modifications Post Modification Recorded Investment In Period								4,400	4,400
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Allocated Reserves Recognized For Trouble Debt Restructuring Receivables That Defaulted	56		451
Reduction in allocated allowance on TDRS during the period											395	395
Number of troubled debt restructured loans for which allocated reserves were no longer deemed warranted											1	1
Premium paid on loans purchased during the period	13,163													0
Allocated reserve on new TDR eliminated								$ 1,320	$ 1,320