LOANS - RISK CATEGORY OF LOANS (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Credit Quality Indicators
Loans	$ 685,738	$ 648,535
Maximum outstanding balance of non-consumer loans evaluated similar to consumer loans over $200,000	200
Pass
Credit Quality Indicators
Loans	639,067	603,894
Special Mention
Credit Quality Indicators
Loans	19,167	18,698
Substandard
Credit Quality Indicators
Loans	6,868	7,591
Doubtful
Credit Quality Indicators
Loans	209
Commercial
Credit Quality Indicators
Loans	85,214	80,070
Commercial | Pass
Credit Quality Indicators
Loans	83,873	78,326
Commercial | Special Mention
Credit Quality Indicators
Loans	867	1,703
Commercial | Substandard
Credit Quality Indicators
Loans	283	41
Commercial | Doubtful
Credit Quality Indicators
Loans	191
Real estate construction
Credit Quality Indicators
Loans	26,259	20,816
Real estate construction | Pass
Credit Quality Indicators
Loans	24,989	20,816
Real estate construction | Special Mention
Credit Quality Indicators
Loans	872
Real estate construction | Substandard
Credit Quality Indicators
Loans	398
1-4 family residential
Credit Quality Indicators
Loans	249,130	238,121
1-4 family residential | Pass
Credit Quality Indicators
Loans	242,181	230,103
1-4 family residential | Special Mention
Credit Quality Indicators
Loans	2,794	3,522
1-4 family residential | Substandard
Credit Quality Indicators
Loans	4,155	4,496
Multi-family residential
Credit Quality Indicators
Loans	46,740	39,926
Multi-family residential | Pass
Credit Quality Indicators
Loans	43,555	36,654
Multi-family residential | Special Mention
Credit Quality Indicators
Loans	2,500	2,551
Multi-family residential | Substandard
Credit Quality Indicators
Loans	685	721
Non-farm & non-residential
Credit Quality Indicators
Loans	194,693	192,074
Non-farm & non-residential | Pass
Credit Quality Indicators
Loans	185,713	183,230
Non-farm & non-residential | Special Mention
Credit Quality Indicators
Loans	8,308	7,240
Non-farm & non-residential | Substandard
Credit Quality Indicators
Loans	654	1,604
Non-farm & non-residential | Doubtful
Credit Quality Indicators
Loans	18
Agricultural
Credit Quality Indicators
Loans	63,275	59,176
Agricultural | Pass
Credit Quality Indicators
Loans	58,756	54,765
Agricultural | Special Mention
Credit Quality Indicators
Loans	3,826	3,682
Agricultural | Substandard
Credit Quality Indicators
Loans	693	729
Consumer
Credit Quality Indicators
Loans	20,304	18,182
Consumer | Non-performing
Credit Quality Indicators
Loans	$ 53	$ 26
Minimum period past due for loans to be considered as non-performing	90 days