LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Impaired Loans and Related Allowance Reserve) (Details) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	$ 24,142,000	$ 31,361,000
Past due and still accruing	1,959,000	3,029,000
TDRs	51,733,000	57,462,000
Total impaired loans	77,834,000	91,852,000
Nonaccrual loans, allocated reserves	1,123,000	2,256,000
Past due and still accruing, allocated reserves	16,000	62,000
TDRs, allocated reserves	5,834,000	6,020,000
Allocated Reserve	6,973,000	8,338,000
Commitments to advance funds to TDRs	1,600,000	1,600,000
Commerical real estate - owner-occupied [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	2,898,000	4,105,000
Past due and still accruing	0	0
TDRs	187,000	188,000
Total impaired loans	3,085,000	4,293,000
Nonaccrual loans, allocated reserves	45,000	618,000
TDRs, allocated reserves	4,000	4,000
Allocated Reserve	49,000	621,000
Commerical real estate - investment properties [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	1,912,000	2,474,000
Past due and still accruing	0	0
TDRs	7,047,000	7,034,000
Total impaired loans	8,960,000	9,508,000
Nonaccrual loans, allocated reserves	87,000	56,000
TDRs, allocated reserves	746,000	664,000
Allocated Reserve	833,000	720,000
Multifamily real estate [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	335,000	0
Past due and still accruing	0	0
TDRs	5,815,000	7,131,000
Total impaired loans	6,150,000	7,131,000
Nonaccrual loans, allocated reserves	70,000	0
TDRs, allocated reserves	1,326,000	1,665,000
Allocated Reserve	1,397,000	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	1,764,000	1,565,000
Past due and still accruing	0	0
TDRs	6,964,000	6,726,000
Total impaired loans	8,727,000	8,291,000
Nonaccrual loans, allocated reserves	265,000	326,000
TDRs, allocated reserves	1,042,000	1,115,000
Allocated Reserve	1,308,000	1,441,000
Land and land development - residential [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	1,011,000	2,061,000
Past due and still accruing	0	0
TDRs	4,352,000	4,842,000
Total impaired loans	5,363,000	6,904,000
Nonaccrual loans, allocated reserves	88,000	323,000
TDRs, allocated reserves	762,000	667,000
Allocated Reserve	849,000	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	2,819,000	4,750,000
Past due and still accruing	4,000	0
TDRs	1,179,000	2,975,000
Total impaired loans	4,002,000	7,725,000
Nonaccrual loans, allocated reserves	207,000	344,000
TDRs, allocated reserves	216,000	610,000
Allocated Reserve	424,000	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	11,465,000	12,964,000
Past due and still accruing	1,897,000	2,877,000
TDRs	25,301,000	27,540,000
Total impaired loans	38,663,000	43,380,000
Nonaccrual loans, allocated reserves	336,000	520,000
TDRs, allocated reserves	1,654,000	1,228,000
Allocated Reserve	2,003,000	1,806,000
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	818,000	1,323,000
Past due and still accruing	58,000	152,000
TDRs	478,000	488,000
Total impaired loans	1,354,000	1,891,000
Nonaccrual loans, allocated reserves	6,000	16,000
TDRs, allocated reserves	58,000	38,000
Allocated Reserve	65,000	48,000
Consumer secured by one- to four-family [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual loans	1,120,000	2,073,000
Past due and still accruing	0	0
TDRs	410,000	538,000
Total impaired loans	1,530,000	2,683,000
Nonaccrual loans, allocated reserves	19,000	41,000
TDRs, allocated reserves	26,000	29,000
Allocated Reserve	$ 45,000	$ 80,000