LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Troubled Debt Restructuring) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Financing Receivable, Modifications [Line Items]
Accrual Status	$ 50,430	$ 57,462
Nonaccrual Status	5,746	7,966
Total Modifications	56,176	65,428
Commerical real estate - owner-occupied [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	186	188
Nonaccrual Status	620	1,551
Total Modifications	806	1,739
Commerical real estate - investment properties [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	5,456	7,034
Nonaccrual Status	1,563	1,514
Total Modifications	7,019	8,548
Multifamily real estate [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	5,810	7,131
Nonaccrual Status	0	0
Total Modifications	5,810	7,131
One-to four-family construction [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	7,285	6,726
Nonaccrual Status	712	1,044
Total Modifications	7,997	7,770
Land and land development - residential [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	5,230	4,842
Nonaccrual Status	0	15
Total Modifications	5,230	4,857
Commercial business [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	1,115	2,975
Nonaccrual Status	322	247
Total Modifications	1,437	3,222
One- to four-family residential [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	24,469	27,540
Nonaccrual Status	2,146	2,703
Total Modifications	26,615	30,243
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	468	488
Nonaccrual Status	129	396
Total Modifications	597	884
Consumer secured by one- to four-family [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	411	538
Nonaccrual Status	254	496
Total Modifications	$ 665	$ 1,034