LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Amortized Cost Basis (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2023 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, interest rate reduction (in percent)	0.20%	0.50%
Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	$ 849	$ 14,969
30 - 59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
60 - 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
Greater Than 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	6,911	6,911
Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	6,911	6,911
Unfunded Loan Commitment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		167
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	0
Payment Delay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	6,975	20,095
Total amortized cost basis of loans that had a payment default	1,549	1,549
Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	554
Total amortized cost basis of loans that had a payment default	1,523	1,523
Interest Rate Reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	$ 0	$ 333
Financing receivable, interest rate reduction (in percent)	0.00%	0.50%
Total amortized cost basis of loans that had a payment default	$ 0	$ 0
Combination Payment Delay and Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	785	898
Total amortized cost basis of loans that had a payment default	$ 0	$ 0
Owner-occupied, nonfarm nonresidential properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, interest rate reduction (in percent)	0.20%	1.20%
Owner-occupied, nonfarm nonresidential properties | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	$ 64	$ 5,314
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
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	696	696
Owner-occupied, nonfarm nonresidential properties | Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	696	696
Owner-occupied, nonfarm nonresidential properties | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	0
Owner-occupied, nonfarm nonresidential properties | Payment Delay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	760	6,010
Owner-occupied, nonfarm nonresidential properties | Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	0	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
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
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, interest rate reduction (in percent)		1.20%
Commercial and Industrial | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		$ 8,870
Commercial and Industrial | 30 - 59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		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
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
Commercial and Industrial | Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		0
Commercial and Industrial | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		0
Commercial and Industrial | Payment Delay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		7,870
Commercial and Industrial | Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		554
Commercial and Industrial | Interest Rate Reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		$ 333
Financing receivable, interest rate reduction (in percent)		0.50%
Commercial and Industrial | Combination Payment Delay and Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated		$ 113
Other construction loans and all land development and other land loans | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total amortized cost basis of loans that had a payment default	0	0
Other construction loans and all land development and other land loans | Payment Delay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total amortized cost basis of loans that had a payment default	1,549	1,549
Other construction loans and all land development and other land loans | Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total amortized cost basis of loans that had a payment default	0	0
Other construction loans and all land development and other land loans | Interest Rate Reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total amortized cost basis of loans that had a payment default	0	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]
Total amortized cost basis of loans that had a payment default	$ 0	$ 0
Non-owner occupied, nonfarm nonresidential properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, interest rate reduction (in percent)	0.80%	0.80%
Non-owner occupied, nonfarm nonresidential properties | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	$ 785	$ 785
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	6,215	6,215
Non-owner occupied, nonfarm nonresidential properties | Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	6,215	6,215
Non-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	0
Non-owner occupied, nonfarm nonresidential properties | Payment Delay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified accumulated	6,215	6,215
Total amortized cost basis of loans that had a payment default	0	0
Non-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	1,523	1,523
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	$ 0
Financing receivable, interest rate reduction (in percent)	0.00%	0.00%
Total amortized cost basis of loans that had a payment default	$ 0	$ 0
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	785	785
Total amortized cost basis of loans that had a payment default	$ 0	$ 0