LOANS - INDIVIDUALLY EVALUATED FOR IMPAIRMENT (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Unpaid Principal Balance
Total	$ 1,970		$ 1,970		$ 1,620
Recorded Investment
Total	1,970		1,970		1,620
Allowance for Loan Losses Allocated.	201		201		23
Average Recorded Investment
Total	2,047	$ 3,377	2,723	$ 2,698	1,637
Interest Income Recognized
Total	21	20	86	59	87
Cash Basis Interest Recognized
Total	21	20	86	59	87
Commercial
Unpaid Principal Balance
With an allowance recorded	191		191
Recorded Investment
With an allowance recorded	191		191
Allowance for Loan Losses Allocated.	191		191
Average Recorded Investment
With an allowance recorded	257		128
Interest Income Recognized
With an allowance recorded			18
Cash Basis Interest Recognized
With an allowance recorded			18
Real estate construction
Unpaid Principal Balance
With no related allowance recorded	374		374
Recorded Investment
With no related allowance recorded	374		374
Average Recorded Investment
With no related allowance recorded	374		94
Interest Income Recognized
With no related allowance recorded			3
Cash Basis Interest Recognized
With no related allowance recorded			3
1-4 family residential
Unpaid Principal Balance
With no related allowance recorded	77		77
With an allowance recorded	137		137		206
Recorded Investment
With no related allowance recorded	77		77
With an allowance recorded	137		137		206
Allowance for Loan Losses Allocated.	10		10		23
Average Recorded Investment
With no related allowance recorded	78		62
With an allowance recorded	138	455	543	1,045	208
Interest Income Recognized
With no related allowance recorded	1		4
With an allowance recorded	2	1	5	8	8
Cash Basis Interest Recognized
With no related allowance recorded	1		4
With an allowance recorded	2	1	5	8	8
Multi-family residential
Unpaid Principal Balance
With no related allowance recorded	684		684
Recorded Investment
With no related allowance recorded	684		684
Average Recorded Investment
With no related allowance recorded	691		523
Interest Income Recognized
With no related allowance recorded	13		37
Cash Basis Interest Recognized
With no related allowance recorded	13		37
Non-farm & non-residential
Unpaid Principal Balance
With no related allowance recorded	230		230		1,130
Recorded Investment
With no related allowance recorded	230		230		1,130
Average Recorded Investment
With no related allowance recorded	231	2,431	1,061	1,243	1,140
Interest Income Recognized
With no related allowance recorded	2	17	8	42	68
Cash Basis Interest Recognized
With no related allowance recorded	2	17	8	42	68
Agricultural
Unpaid Principal Balance
With no related allowance recorded	277		277		284
Recorded Investment
With no related allowance recorded	277		277		284
Average Recorded Investment
With no related allowance recorded	278	491	312	410	289
Interest Income Recognized
With no related allowance recorded	3	2	11	9	11
Cash Basis Interest Recognized
With no related allowance recorded	$ 3	$ 2	$ 11	$ 9	$ 11