LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Troubled Debt Restructuring) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	$ 17,649	$ 21,777
TDRs on Nonaccrual Status	1,154	2,319
Total TDRs	18,803	24,096
Commitments to advance funds related to TDRs, maximum additional amounts	133	237
Commerical real estate - owner-occupied [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	181	181
TDRs on Nonaccrual Status	99	104
Total TDRs	280	285
Commerical real estate - investment properties [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	5,706	5,834
TDRs on Nonaccrual Status	0	13
Total TDRs	5,706	5,847
Multifamily real estate [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	351	357
TDRs on Nonaccrual Status	0	0
Total TDRs	351	357
One- to four-family construction [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	1,176	1,741
TDRs on Nonaccrual Status	0	0
Total TDRs	1,176	1,741
Land and land development - residential [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	1,213	1,151
TDRs on Nonaccrual Status	0	483
Total TDRs	1,213	1,634
Commercial business [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	434	624
TDRs on Nonaccrual Status	0	0
Total TDRs	434	624
Agricultural business, including secured by farmland [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	616	545
TDRs on Nonaccrual Status	87	277
Total TDRs	703	822
One- to four-family residential [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	7,657	11,025
TDRs on Nonaccrual Status	960	1,428
Total TDRs	8,617	12,453
Consumer secured by one- to four-family [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	144	147
TDRs on Nonaccrual Status	8	14
Total TDRs	152	161
Consumer - other [Member]
Financing Receivable, Modifications [Line Items]
TDRs on Accrual Status	171	172
TDRs on Nonaccrual Status	0	0
Total TDRs	$ 171	$ 172