LOANS - INDIVIDUALLY EVALUATED FOR IMPAIRMENT (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Unpaid Principal Balance
Total	$ 1,620	$ 7,994	$ 9,469
Recorded Investment
Total	1,620	7,994	9,469
Allowance for Loan Losses Allocated.	23	541	648
Average Recorded Investment
Total	1,637	8,793	11,920
Interest Income Recognized
Total	87	191	93
Cash Basis Interest Recognized
Total	87	191	93
Commercial
Unpaid Principal Balance
With no related allowance recorded		97
Recorded Investment
With no related allowance recorded		97
Average Recorded Investment
With no related allowance recorded		48
Interest Income Recognized
With no related allowance recorded		30
Cash Basis Interest Recognized
With no related allowance recorded		30
Real estate construction
Unpaid Principal Balance
With no related allowance recorded		153	835
Recorded Investment
With no related allowance recorded		153	835
Average Recorded Investment
With no related allowance recorded		494	820
Interest Income Recognized
With no related allowance recorded		9	29
Cash Basis Interest Recognized
With no related allowance recorded		9	29
1-4 family residential
Unpaid Principal Balance
With no related allowance recorded		606	370
With an allowance recorded	206	2,098	1,083
Recorded Investment
With no related allowance recorded		606	370
With an allowance recorded	206	2,098	1,083
Allowance for Loan Losses Allocated.	23	99	128
Average Recorded Investment
With no related allowance recorded		488	1,493
With an allowance recorded	208	1,590	1,916
Interest Income Recognized
With no related allowance recorded			15
With an allowance recorded	8	56	6
Cash Basis Interest Recognized
With no related allowance recorded			15
With an allowance recorded	8	56	6
Non-farm & non-residential
Unpaid Principal Balance
With no related allowance recorded	1,130
With an allowance recorded		1,725	2,882
Recorded Investment
With no related allowance recorded	1,130
With an allowance recorded		1,725	2,882
Allowance for Loan Losses Allocated.		15	181
Average Recorded Investment
With no related allowance recorded	1,140		68
With an allowance recorded		2,303	2,885
Interest Income Recognized
With no related allowance recorded	68
With an allowance recorded		71	29
Cash Basis Interest Recognized
With no related allowance recorded	68
With an allowance recorded		71	29
Multi-family residential
Average Recorded Investment
With an allowance recorded			24
Agricultural
Unpaid Principal Balance
With no related allowance recorded	284	654	469
With an allowance recorded		2,661	3,830
Recorded Investment
With no related allowance recorded	284	654	469
With an allowance recorded		2,661	3,830
Allowance for Loan Losses Allocated.		427	339
Average Recorded Investment
With no related allowance recorded	289	561	335
With an allowance recorded		3,309	4,379
Interest Income Recognized
With no related allowance recorded	11		14
With an allowance recorded		25
Cash Basis Interest Recognized
With no related allowance recorded	$ 11		$ 14
With an allowance recorded		$ 25