LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Impaired Loans and Related Allowance Reserve) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	$ 20,069,000	$ 31,361,000
Past due and still accruing	4,793,000	3,029,000
TDRs	50,430,000	57,462,000
Total impaired loans	75,292,000	91,852,000
Nonaccrual loans, allocated reserves	752,000	2,256,000
Past due and still accruing, allocated reserves	409,000	62,000
TDRs, allocated reserves	5,559,000	6,020,000
Allocated Reserve	6,720,000	8,338,000
Commitments to advance funds to TDRs	1,700,000	1,600,000
Commerical real estate - owner-occupied [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	2,798,000	4,105,000
Past due and still accruing	0	0
TDRs	186,000	188,000
Total impaired loans	2,985,000	4,293,000
Nonaccrual loans, allocated reserves	38,000	618,000
TDRs, allocated reserves	4,000	4,000
Allocated Reserve	42,000	621,000
Commerical real estate - investment properties [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	1,965,000	2,474,000
Past due and still accruing	0	0
TDRs	5,456,000	7,034,000
Total impaired loans	7,421,000	9,508,000
Nonaccrual loans, allocated reserves	97,000	56,000
TDRs, allocated reserves	455,000	664,000
Allocated Reserve	552,000	720,000
Multifamily real estate [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	333,000	0
Past due and still accruing	1,701,000	0
TDRs	5,810,000	7,131,000
Total impaired loans	7,844,000	7,131,000
Nonaccrual loans, allocated reserves	59,000	0
TDRs, allocated reserves	1,256,000	1,665,000
Allocated Reserve	1,615,000	1,665,000
Commercial construction [Member]
Financing Receivable, Impaired [Line Items]
Past due and still accruing	0	0
One-to four-family construction [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	910,000	1,565,000
Past due and still accruing	0	0
TDRs	7,285,000	6,726,000
Total impaired loans	8,195,000	8,291,000
Nonaccrual loans, allocated reserves	81,000	326,000
TDRs, allocated reserves	1,070,000	1,115,000
Allocated Reserve	1,151,000	1,441,000
Land and land development - residential [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	750,000	2,061,000
Past due and still accruing	242,000	0
TDRs	5,230,000	4,842,000
Total impaired loans	6,222,000	6,904,000
Nonaccrual loans, allocated reserves	0	323,000
TDRs, allocated reserves	1,112,000	667,000
Allocated Reserve	1,199,000	990,000
Land and land development - commercial [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	0	46,000
Past due and still accruing	0	0
Total impaired loans		46,000
Nonaccrual loans, allocated reserves	0	12,000
Allocated Reserve		12,000
Commercial business [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	963,000	4,750,000
Past due and still accruing	24,000	0
TDRs	1,115,000	2,975,000
Total impaired loans	3,812,000	7,725,000
Nonaccrual loans, allocated reserves	151,000	344,000
TDRs, allocated reserves	203,000	610,000
Allocated Reserve	368,000	955,000
Agricultural business/farmland [Member]
Financing Receivable, Impaired [Line Items]
Past due and still accruing	0	0
One- to four-family residential [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	10,717,000	12,964,000
Past due and still accruing	2,774,000	2,877,000
TDRs	24,469,000	27,540,000
Total impaired loans	36,249,000	43,380,000
Nonaccrual loans, allocated reserves	307,000	520,000
TDRs, allocated reserves	1,374,000	1,228,000
Allocated Reserve	1,688,000	1,806,000
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	693,000	1,323,000
Past due and still accruing	29,000	152,000
TDRs	468,000	488,000
Total impaired loans	1,190,000	1,891,000
Nonaccrual loans, allocated reserves	3,000	16,000
TDRs, allocated reserves	56,000	38,000
Allocated Reserve	59,000	48,000
Consumer secured by one- to four-family [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	940,000	2,073,000
Past due and still accruing	23,000	0
TDRs	411,000	538,000
Total impaired loans	1,374,000	2,683,000
Nonaccrual loans, allocated reserves	16,000	41,000
TDRs, allocated reserves	29,000	29,000
Allocated Reserve	$ 46,000	$ 80,000