LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Troubled Debt Restructuring) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Modifications [Line Items]
Accrual Status	$ 57,462	$ 54,533
Nonaccrual Status	7,966	11,350
Total Modifications	65,428	65,883
Commerical real estate - owner-occupied [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	188	0
Nonaccrual Status	1,551	142
Total Modifications	1,739	142
Commerical real estate - investment properties [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	7,034	7,751
Nonaccrual Status	1,514	1,822
Total Modifications	8,548	9,573
Multifamily real estate [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	7,131	2,088
Nonaccrual Status	0	0
Total Modifications	7,131	2,088
One-to four-family construction [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	6,726	8,362
Nonaccrual Status	1,044	271
Total Modifications	7,770	8,633
Land and land development - residential [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	4,842	5,334
Nonaccrual Status	15	557
Total Modifications	4,857	5,891
Land and land development - commercial [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status		0
Nonaccrual Status		949
Total Modifications		949
Commercial business [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	2,975	4,401
Nonaccrual Status	247	0
Total Modifications	3,222	4,401
One- to four-family residential [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	27,540	23,291
Nonaccrual Status	2,703	3,086
Total Modifications	30,243	26,377
Consumer secured by one- to four-family [Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	538	371
Nonaccrual Status	496	549
Total Modifications	1,034	920
Consumer - other Member]
Financing Receivable, Modifications [Line Items]
Accrual Status	488	2,935
Nonaccrual Status	396	3,974
Total Modifications	$ 884	$ 6,909