LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Amortized Cost Basis (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, interest rate reduction (in percent)	0.00%	0.20%
Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	$ 11,525	$ 5,240
30 - 59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	609	98
60 - 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	1,538
Greater Than 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	609	1,636
Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
Total amortized cost basis of loans that had a payment default	0
Payment Delay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	288	4,209
Total amortized cost basis of loans that had a payment default	308
Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	505	2,174
Total amortized cost basis of loans that had a payment default	0
Interest Rate Reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	$ 0	$ 371
Financing receivable, interest rate reduction (in percent)	0.00%	0.00%
Total amortized cost basis of loans that had a payment default	$ 301
Combination Payment Delay and Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	$ 122
Total amortized cost basis of loans that had a payment default	$ 0
Owner-occupied, nonfarm nonresidential properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, interest rate reduction (in percent)	0.10%	0.00%
Owner-occupied, nonfarm nonresidential properties | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	$ 696	$ 0
Owner-occupied, nonfarm nonresidential properties | 30 - 59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	288	98
Owner-occupied, nonfarm nonresidential properties | 60 - 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
Owner-occupied, nonfarm nonresidential properties | Greater Than 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
Owner-occupied, nonfarm nonresidential properties | Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	288	98
Owner-occupied, nonfarm nonresidential properties | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
Total amortized cost basis of loans that had a payment default	0
Owner-occupied, nonfarm nonresidential properties | Payment Delay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	288	98
Total amortized cost basis of loans that had a payment default	308
Owner-occupied, nonfarm nonresidential properties | Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
Total amortized cost basis of loans that had a payment default	0
Owner-occupied, nonfarm nonresidential properties | Interest Rate Reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
Total amortized cost basis of loans that had a payment default	0
Owner-occupied, nonfarm nonresidential properties | Combination Payment Delay and Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	$ 0
Total amortized cost basis of loans that had a payment default	$ 0
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, interest rate reduction (in percent)	0.10%	0.50%
Commercial and Industrial | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	$ 3,705	$ 3,678
Commercial and Industrial | 30 - 59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	321	0
Commercial and Industrial | 60 - 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
Commercial and Industrial | Greater Than 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
Commercial and Industrial | Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	321	0
Commercial and Industrial | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
Total amortized cost basis of loans that had a payment default	0
Commercial and Industrial | Payment Delay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	2,573
Total amortized cost basis of loans that had a payment default	0
Commercial and Industrial | Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	505	612
Total amortized cost basis of loans that had a payment default	0
Commercial and Industrial | Interest Rate Reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	$ 0	$ 371
Financing receivable, interest rate reduction (in percent)	0.00%	0.50%
Total amortized cost basis of loans that had a payment default	$ 301
Commercial and Industrial | Combination Payment Delay and Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	$ 122
Total amortized cost basis of loans that had a payment default	0
Other construction loans and all land development and other land loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, interest rate reduction (in percent)		0.40%
Other construction loans and all land development and other land loans | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		$ 0
Other construction loans and all land development and other land loans | 30 - 59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		0
Other construction loans and all land development and other land loans | 60 - 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		1,538
Other construction loans and all land development and other land loans | Greater Than 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		0
Other construction loans and all land development and other land loans | Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		1,538
Other construction loans and all land development and other land loans | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		0
Other construction loans and all land development and other land loans | Payment Delay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		1,538
Other construction loans and all land development and other land loans | Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		0
Other construction loans and all land development and other land loans | Interest Rate Reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		0
Other construction loans and all land development and other land loans | Combination Payment Delay and Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		$ 0
Non-owner occupied, nonfarm nonresidential properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, interest rate reduction (in percent)		0.20%
Non-owner occupied, nonfarm nonresidential properties | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	6,696	$ 1,562
Non-owner occupied, nonfarm nonresidential properties | 30 - 59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
Non-owner occupied, nonfarm nonresidential properties | 60 - 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
Non-owner occupied, nonfarm nonresidential properties | Greater Than 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
Non-owner occupied, nonfarm nonresidential properties | Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
Non-owner occupied, nonfarm nonresidential properties | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		0
Non-owner occupied, nonfarm nonresidential properties | Payment Delay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		0
Non-owner occupied, nonfarm nonresidential properties | Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		1,562
Non-owner occupied, nonfarm nonresidential properties | Interest Rate Reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		$ 0
Financing receivable, interest rate reduction (in percent)		0.00%
Non-owner occupied, nonfarm nonresidential properties | Combination Payment Delay and Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		$ 0
Residential Mortgages secured by first liens | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	399
Residential Mortgages secured by first liens | 30 - 59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0
Residential Mortgages secured by first liens | 60 - 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0
Residential Mortgages secured by first liens | Greater Than 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0
Residential Mortgages secured by first liens | Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0
Residential Mortgages secured by junior liens | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	29
Residential Mortgages secured by junior liens | 30 - 59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0
Residential Mortgages secured by junior liens | 60 - 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0
Residential Mortgages secured by junior liens | Greater Than 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0
Residential Mortgages secured by junior liens | Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	$ 0