LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Payment Status of Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	$ 24,954	$ 8,296
Current	1,693,399	1,698,099
Total Loans	1,718,353	1,706,395
Recorded Investment Greater than 90 Days and Accruing	150
Financing Receivables, 30 to 59 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	13,389	4,704
Financing Receivables, 60 to 89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	1,449	1,754
Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	10,116	1,838
Commercial and industrial
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	478	389
Current	296,685	279,194
Total Loans	297,163	279,583
Commercial and industrial | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	73	321
Commercial and industrial | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	49	53
Commercial and industrial | Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	356	15
Construction and development
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	1,369	161
Current	262,604	280,337
Total Loans	263,973	280,498
Construction and development | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	1,369	161
Commercial real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	17,764	2,112
Current	567,119	565,248
Total Loans	584,883	567,360
Recorded Investment Greater than 90 Days and Accruing	150
Commercial real estate | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	8,285	1,181
Commercial real estate | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	340	49
Commercial real estate | Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	9,139	882
Farmland
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	550	103
Current	78,085	57,373
Total Loans	78,635	57,476
Farmland | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	263	103
Farmland | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	238
Farmland | Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	49
1-4 family residential
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	4,006	4,792
Current	396,599	407,374
Total Loans	400,605	412,166
1-4 family residential | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	2,823	2,514
1-4 family residential | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	712	1,433
1-4 family residential | Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	471	845
Multi-family residential
Financing Receivable Recorded Investment Past Due [Line Items]
Current	20,430	37,379
Total Loans	20,430	37,379
Consumer
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	741	621
Current	52,255	52,624
Total Loans	52,996	53,245
Consumer | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	566	373
Consumer | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	103	152
Consumer | Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	72	96
Agricultural
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	46	118
Current	19,268	18,241
Total Loans	19,314	18,359
Agricultural | Financing Receivables, 30 to 59 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	10	51
Agricultural | Financing Receivables, 60 to 89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	7	67
Agricultural | Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Total past due loans	29
Overdrafts
Financing Receivable Recorded Investment Past Due [Line Items]
Current	354	329
Total Loans	$ 354	$ 329