FAIR VALUE - Carrying amounts and Estimated fair values (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financial Assets:
SBA servicing assets	$ 7,000	$ 7,200
Recurring
Financial Assets:
SBA servicing assets	7,107	7,038
Interest only strips		47
Interest rate derivatives	46,502	28,781
Recurring | Carrying Amount
Financial Assets:
Cash, due from banks, and federal funds sold	282,057	179,485
Investment securities	27,777	29,545
FHLB stock	17,846	17,493
Loans, net	3,012,287	3,041,801
Accrued interest receivable	14,612	13,171
SBA servicing assets	7,107	7,038
Mortgage servicing assets	1,823	3,973
Interest only strips		47
Interest rate derivatives	46,502	28,781
Financial Liabilities:
Deposits	2,718,588	2,666,838
Federal Home Loan Bank advances	325,000	375,000
Other borrowings		392
Accrued interest payable	3,915	2,739
Interest rate swaps		779
Recurring | Estimated Fair Value
Financial Assets:
Cash, due from banks, and federal funds sold	282,057	179,485
Investment securities	27,777	29,545
Loans, net	2,862,576	2,999,520
Accrued interest receivable	14,612	13,171
SBA servicing assets	7,107	7,038
Mortgage servicing assets	7,020	7,209
Interest only strips		47
Interest rate derivatives	46,502	28,781
Financial Liabilities:
Deposits	2,713,695	2,658,837
Federal Home Loan Bank advances	326,268	376,575
Other borrowings		392
Accrued interest payable	3,915	2,739
Interest rate swaps		779
Level 1 | Recurring | Estimated Fair Value
Financial Assets:
Investment securities	10,113	10,300
Level 2 | Recurring
Financial Assets:
Interest rate derivatives	46,502	28,781
Level 2 | Recurring | Estimated Fair Value
Financial Assets:
Cash, due from banks, and federal funds sold	282,057	179,485
Investment securities	12,986	14,186
Accrued interest receivable	61	98
Interest rate derivatives	46,502	28,781
Financial Liabilities:
Deposits	2,713,695	2,658,837
Federal Home Loan Bank advances	326,268	376,575
Other borrowings		392
Accrued interest payable	3,915	2,739
Interest rate swaps		779
Level 3 | Recurring
Financial Assets:
SBA servicing assets	7,107	7,038
Interest only strips		47
Level 3 | Recurring | Estimated Fair Value
Financial Assets:
Investment securities	4,678	5,059
Loans, net	2,862,576	2,999,520
Accrued interest receivable	14,551	13,073
SBA servicing assets	7,107	7,038
Mortgage servicing assets	$ 7,020	7,209
Interest only strips		$ 47