EMPLOYEE BENEFITS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Employee Benefits [Line Items]
Defined contribution plan, employer matching contribution, percent	50.00%
Employee stockownership plan ESOP deferred shares	5,728
Deferred compensation arrangement with individual, employer contribution	$ 990	$ 771	$ 628
Employee Stock Ownership Plan (ESOP), compensation expense	26	11	4
SERP balance	1,800	1,100
Accrued Employee Benefits	676	$ 257	$ 259
Employee Stock Ownership Plan (ESOP), Deferred Shares, Fair Value	177
Iberville Bank
Employee Benefits [Line Items]
Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent	980,000
Deferred Compensation Arrangement with Individual, Allocated Share-based Compensation Expense	23
Southwest
Employee Benefits [Line Items]
Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent	1,100
Deferred Compensation Arrangement with Individual, Allocated Share-based Compensation Expense	55
FMB Banking Corporation
Employee Benefits [Line Items]
Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent	3,000
Deferred Compensation Arrangement with Individual, Allocated Share-based Compensation Expense	180
SWG
Employee Benefits [Line Items]
Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent	492
Deferred Compensation Arrangement with Individual, Allocated Share-based Compensation Expense	$ 0