SUBORDINATED DEBT (Details)					1 Months Ended		12 Months Ended
	Jan. 01, 2023 USD ($)	Sep. 25, 2020 USD ($)	Jul. 27, 2007 USD ($)	Jun. 30, 2006 USD ($)	May 31, 2023 USD ($)	Apr. 30, 2018 USD ($) agreement	Dec. 31, 2018 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Subordinated Debenture [Line Items]
Trust Preferred Securities to investors			$ 6,000,000	$ 4,000,000
Number of subordinated note purchase agreements | agreement						2
Subordinated debentures								$ 123,731,000	$ 123,386,000
Heritage Southeast Bank
Subordinated Debenture [Line Items]
Trust Preferred Securities to investors	$ 10,000,000
FMB Banking Corporation
Subordinated Debenture [Line Items]
Trust Preferred Securities to investors							$ 6,000,000
SOFR
Subordinated Debenture [Line Items]
Basis spread on variable rate	1.48%		1.40%	1.65%		3.39%	2.85%
SOFR +1.65%
Subordinated Debenture [Line Items]
Basis spread on variable rate				0.02616%
SOFR + 1.40%
Subordinated Debenture [Line Items]
Basis spread on variable rate			0.02616%
SOFR + 2.85%
Subordinated Debenture [Line Items]
Basis spread on variable rate							0.02616%
SOFR + 1.48%
Subordinated Debenture [Line Items]
Basis spread on variable rate	0.02616%
SOFR + 3.39%
Subordinated Debenture [Line Items]
Basis spread on variable rate						0.02616%
Junior Subordinated Debt
Subordinated Debenture [Line Items]
Junior subordinated deferrable interest debentures	$ 10,300,000		$ 6,200,000	$ 4,100,000			$ 6,200,000
Junior Subordinated Debt | 6.40% Subordinated Notes Due 2033
Subordinated Debenture [Line Items]
Debt Instrument, face amount						$ 42,000,000.0
Debt instrument, interest rate, effective percentage						6.40%
Debt instrument, term						15 years
Subordinated Debt
Subordinated Debenture [Line Items]
Subordinated debentures								123,700,000	123,400,000
Debt issuance costs, net								1,400,000	1,600,000
Subordinated Debt | 5.875% Subordinated Notes Due 2028
Subordinated Debenture [Line Items]
Debt Instrument, face amount						$ 24,000,000.0
Debt instrument, interest rate, effective percentage						5.875%
Debt instrument, redeemed face amount					$ 24,000,000
Subordinated Debt | 4.25% Subordinated Notes Due 2030
Subordinated Debenture [Line Items]
Debt Instrument, face amount		$ 65,000,000.0
Debt instrument, interest rate, effective percentage		4.25%
Debt instrument, term		10 years
Period of interest payable semi annually, percent		4.25%
Subordinated Debt | SOFR | 4.25% Subordinated Notes Due 2030
Subordinated Debenture [Line Items]
Basis spread on variable rate		4.126%
Estimated Fair Value
Subordinated Debenture [Line Items]
Subordinated debentures								111,709,000	109,426,000
Estimated Fair Value | Subordinated Debt
Subordinated Debenture [Line Items]
Subordinated debentures								$ 1,700,000	$ 2,100,000