LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Troubled Debt Restructuring) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	$ 19,450	$ 21,777
TDRs on Nonaccrual Status	2,236	2,319
Total TDRs	21,686	24,096
Commitments to advance funds related to TDRs, maximum additional amounts	197	237
Commerical real estate - owner-occupied [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	181	181
TDRs on Nonaccrual Status	102	104
Total TDRs	283	285
Commerical real estate - investment properties [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	5,792	5,834
TDRs on Nonaccrual Status	6	13
Total TDRs	5,798	5,847
Multifamily real estate [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	355	357
TDRs on Nonaccrual Status	0	0
Total TDRs	355	357
Commercial construction [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	0
TDRs on Nonaccrual Status	0
Total TDRs	0
One- to four-family construction [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	1,644	1,741
TDRs on Nonaccrual Status	0	0
Total TDRs	1,644	1,741
Land and land development - residential [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	762	1,151
TDRs on Nonaccrual Status	472	483
Total TDRs	1,234	1,634
Land and land development - commercial [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	0
TDRs on Nonaccrual Status	0
Total TDRs	0
Commercial business [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	561	624
TDRs on Nonaccrual Status	0	0
Total TDRs	561	624
Agricultural business, including secured by farmland [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	563	545
TDRs on Nonaccrual Status	243	277
Total TDRs	806	822
One- to four-family residential [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	9,277	11,025
TDRs on Nonaccrual Status	1,401	1,428
Total TDRs	10,678	12,453
Consumer secured by one- to four-family [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	146	147
TDRs on Nonaccrual Status	12	14
Total TDRs	158	161
Consumer - other [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	169	172
TDRs on Nonaccrual Status	0	0
Total TDRs	$ 169	$ 172