LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Impaired Loans With and Without Specific Reserves) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2013		Dec. 31, 2012
Financing Receivable, Impaired [Line Items]
Recorded Investment	$ 88,017		$ 91,852
Unpaid Principal Balance	93,762		98,232
Related Allowance	8,419		8,338
Average Recorded Investment	87,981		92,583
Interest Income Recognized	637		2,748
Commerical real estate - owner-occupied [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	3,745		4,293
Unpaid Principal Balance	3,895		4,544
Related Allowance	56		621
Average Recorded Investment	3,777		4,583
Interest Income Recognized	3		0
Commerical real estate - investment properties [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	10,189		9,508
Unpaid Principal Balance	11,999		10,981
Related Allowance	1,079		720
Average Recorded Investment	10,427		10,184
Interest Income Recognized	85		246
Multifamily real estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	7,414		7,131
Unpaid Principal Balance	7,414		7,131
Related Allowance	1,846		1,665
Average Recorded Investment	7,415		7,136
Interest Income Recognized	90		408
One-to four-family construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	8,503		8,291
Unpaid Principal Balance	8,619		8,291
Related Allowance	1,315		1,441
Average Recorded Investment	7,983		6,946
Interest Income Recognized	65		339
Land and land development - residential [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	6,319		6,904
Unpaid Principal Balance	6,533		7,369
Related Allowance	1,022		990
Average Recorded Investment	6,450		7,987
Interest Income Recognized	52		258
Land and land development - commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment			46
Unpaid Principal Balance			46
Related Allowance			12
Average Recorded Investment			46
Interest Income Recognized			0
Commercial business [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	5,564		7,725
Unpaid Principal Balance	6,643		8,704
Related Allowance	556		955
Average Recorded Investment	5,784		6,052
Interest Income Recognized	14		160
One- to four-family residential [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	42,131		43,380
Unpaid Principal Balance	43,856		45,676
Related Allowance	2,305		1,806
Average Recorded Investment	41,990		44,558
Interest Income Recognized	313		1,303
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	1,771		1,891
Unpaid Principal Balance	1,904		2,015
Related Allowance	184		48
Average Recorded Investment	1,762		2,051
Interest Income Recognized	8		5
Consumer secured by one- to four-family [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	2,381		2,683
Unpaid Principal Balance	2,899		3,475
Related Allowance	56		80
Average Recorded Investment	2,393		3,040
Interest Income Recognized	7		29
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	15,386	[1]	28,729	[1]
Unpaid Principal Balance	18,216	[1]	32,220	[1]
Related Allowance	888	[1]	2,613	[1]
Average Recorded Investment	15,663	[1]	27,512	[1]
Interest Income Recognized	2	[1]	565	[1]
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | Commerical real estate - owner-occupied [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	1,018	[1]	1,300	[1]
Unpaid Principal Balance	1,168	[1]	1,551	[1]
Related Allowance	52	[1]	103	[1]
Average Recorded Investment	1,027	[1]	1,470	[1]
Interest Income Recognized	0	[1]	0	[1]
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | Commerical real estate - investment properties [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	284	[1]	624	[1]
Unpaid Principal Balance	467	[1]	861	[1]
Related Allowance	53	[1]	90	[1]
Average Recorded Investment	289	[1]	735	[1]
Interest Income Recognized	0	[1]	17	[1]
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | Multifamily real estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	339	[1]	2,131	[1]
Unpaid Principal Balance	339	[1]	2,131	[1]
Related Allowance	71	[1]	392	[1]
Average Recorded Investment	339	[1]	2,136	[1]
Interest Income Recognized	0	[1]	113	[1]
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | One-to four-family construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	992	[1]	4,460	[1]
Unpaid Principal Balance	1,108	[1]	4,460	[1]
Related Allowance	96	[1]	571	[1]
Average Recorded Investment	1,036	[1]	3,335	[1]
Interest Income Recognized	0	[1]	145	[1]
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | Land and land development - residential [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	691	[1]	2,122	[1]
Unpaid Principal Balance	905	[1]	2,587	[1]
Related Allowance	233	[1]	404	[1]
Average Recorded Investment	731	[1]	2,948	[1]
Interest Income Recognized	0	[1]	73	[1]
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | Land and land development - commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment			46	[1]
Unpaid Principal Balance			46	[1]
Related Allowance			12	[1]
Average Recorded Investment			46	[1]
Interest Income Recognized			0	[1]
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | Commercial business [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	1,427	[1]	4,352	[1]
Unpaid Principal Balance	2,145	[1]	4,970	[1]
Related Allowance	271	[1]	821	[1]
Average Recorded Investment	1,537	[1]	2,121	[1]
Interest Income Recognized	0	[1]	154	[1]
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | One- to four-family residential [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	8,187	[1]	10,886	[1]
Unpaid Principal Balance	9,013	[1]	12,004	[1]
Related Allowance	80	[1]	150	[1]
Average Recorded Investment	8,260	[1]	11,458	[1]
Interest Income Recognized	2	[1]	44	[1]
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | Consumer [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	952	[1]	1,167	[1]
Unpaid Principal Balance	1,070	[1]	1,275	[1]
Related Allowance	9	[1]	16	[1]
Average Recorded Investment	942	[1]	1,297	[1]
Interest Income Recognized	0	[1]	5	[1]
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | Consumer secured by one- to four-family [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	1,496	[1]	1,641	[1]
Unpaid Principal Balance	2,001	[1]	2,335	[1]
Related Allowance	23	[1]	54	[1]
Average Recorded Investment	1,502	[1]	1,966	[1]
Interest Income Recognized	0	[1]	14	[1]
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	72,631	[2]	63,123	[2]
Unpaid Principal Balance	75,546	[2]	66,012	[2]
Related Allowance	7,531	[2]	5,725	[2]
Average Recorded Investment	72,318	[2]	65,071	[2]
Interest Income Recognized	635	[2]	2,183	[2]
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | Commerical real estate - owner-occupied [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	2,727	[2]	2,993	[2]
Unpaid Principal Balance	2,727	[2]	2,993	[2]
Related Allowance	4	[2]	518	[2]
Average Recorded Investment	2,750	[2]	3,113	[2]
Interest Income Recognized	3	[2]	0	[2]
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | Commerical real estate - investment properties [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	9,905	[2]	8,884	[2]
Unpaid Principal Balance	11,532	[2]	10,120	[2]
Related Allowance	1,026	[2]	630	[2]
Average Recorded Investment	10,138	[2]	9,449	[2]
Interest Income Recognized	85	[2]	229	[2]
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | Multifamily real estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	7,075	[2]	5,000	[2]
Unpaid Principal Balance	7,075	[2]	5,000	[2]
Related Allowance	1,775	[2]	1,273	[2]
Average Recorded Investment	7,076	[2]	5,000	[2]
Interest Income Recognized	90	[2]	295	[2]
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | One-to four-family construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	7,511	[2]	3,831	[2]
Unpaid Principal Balance	7,511	[2]	3,831	[2]
Related Allowance	1,219	[2]	870	[2]
Average Recorded Investment	6,947	[2]	3,611	[2]
Interest Income Recognized	65	[2]	194	[2]
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | Land and land development - residential [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	5,628	[2]	4,782	[2]
Unpaid Principal Balance	5,628	[2]	4,782	[2]
Related Allowance	789	[2]	586	[2]
Average Recorded Investment	5,719	[2]	5,039	[2]
Interest Income Recognized	52	[2]	185	[2]
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | Land and land development - commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment			0	[2]
Unpaid Principal Balance			0	[2]
Related Allowance			0	[2]
Average Recorded Investment			0	[2]
Interest Income Recognized			0	[2]
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | Commercial business [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	4,137	[2]	3,373	[2]
Unpaid Principal Balance	4,498	[2]	3,734	[2]
Related Allowance	285	[2]	134	[2]
Average Recorded Investment	4,247	[2]	3,931	[2]
Interest Income Recognized	14	[2]	6	[2]
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | One- to four-family residential [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	33,944	[2]	32,494	[2]
Unpaid Principal Balance	34,843	[2]	33,672	[2]
Related Allowance	2,225	[2]	1,656	[2]
Average Recorded Investment	33,730	[2]	33,100	[2]
Interest Income Recognized	311	[2]	1,259	[2]
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | Consumer [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	819	[2]	724	[2]
Unpaid Principal Balance	834	[2]	740	[2]
Related Allowance	175	[2]	32	[2]
Average Recorded Investment	820	[2]	754	[2]
Interest Income Recognized	8	[2]	0	[2]
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | Consumer secured by one- to four-family [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	885	[2]	1,042	[2]
Unpaid Principal Balance	898	[2]	1,140	[2]
Related Allowance	33	[2]	26	[2]
Average Recorded Investment	891	[2]	1,074	[2]
Interest Income Recognized	$ 7	[2]	$ 15	[2]

[1] Loans without a specific allowance reserve have not been individually evaluated for impairment, but have been included in pools of homogeneous loans for evaluation of related allowance reserves.

[2] Loans with a specific allowance reserve have been individually evaluated for impairment using either a discounted cash flow analysis or, for collateral dependent loans, current appraisals to establish realizable value. These analyses may identify a specific impairment amount needed or may conclude that no reserve is needed. Any specific impairment that is identified is included in the category’s Related Allowance column.