FAIR VALUE - Schedule of Carrying Amounts and Estimated Fair Value of Assets And Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financial assets:
Loans, net		$ 14,527
Level 3 Inputs
Financial assets:
Loans, net		14,527
Reported Value Measurement
Financial assets:
Cash, due from banks, federal funds sold and interest-bearing deposits	$ 73,093	89,524
Marketable securities held to maturity	363,963	404,208
Loans, net	2,234,012	2,290,881
Accrued interest receivable	11,747	13,143
Nonmarketable equity securities	20,870	24,128
Financial liabilities:
Deposits	2,627,844	2,633,246
Securities sold under repurchase agreements	39,058	25,172
Accrued interest payable	5,588	5,272
Federal Home Loan Bank advances	75,000	140,000
Subordinated debt	45,819	45,785
Fair Value
Financial assets:
Cash, due from banks, federal funds sold and interest-bearing deposits	73,093	89,524
Marketable securities held to maturity	331,480	374,523
Loans, net	2,148,577	2,187,669
Accrued interest receivable	11,747	13,143
Nonmarketable equity securities	20,870	24,128
Financial liabilities:
Deposits	2,629,332	2,634,137
Securities sold under repurchase agreements	39,058	25,172
Accrued interest payable	5,588	5,272
Federal Home Loan Bank advances	74,981	139,963
Subordinated debt	46,304	46,433
Fair Value | Level 1 Inputs
Financial assets:
Cash, due from banks, federal funds sold and interest-bearing deposits	73,093	89,524
Marketable securities held to maturity	0	0
Loans, net	0	0
Accrued interest receivable	0	0
Nonmarketable equity securities	0	0
Financial liabilities:
Deposits	1,931,728	1,928,063
Securities sold under repurchase agreements	0	0
Accrued interest payable	0	0
Federal Home Loan Bank advances	0	0
Subordinated debt	0	0
Fair Value | Level 2 Inputs
Financial assets:
Cash, due from banks, federal funds sold and interest-bearing deposits	0	0
Marketable securities held to maturity	331,480	374,523
Loans, net	0	0
Accrued interest receivable	11,747	13,143
Nonmarketable equity securities	20,870	24,128
Financial liabilities:
Deposits	697,604	706,074
Securities sold under repurchase agreements	39,058	25,172
Accrued interest payable	5,588	5,272
Federal Home Loan Bank advances	74,981	139,963
Subordinated debt	46,304	46,433
Fair Value | Level 3 Inputs
Financial assets:
Cash, due from banks, federal funds sold and interest-bearing deposits	0	0
Marketable securities held to maturity	0	0
Loans, net	2,148,577	2,187,669
Accrued interest receivable	0	0
Nonmarketable equity securities	0	0
Financial liabilities:
Deposits	0	0
Securities sold under repurchase agreements	0	0
Accrued interest payable	0	0
Federal Home Loan Bank advances	0	0
Subordinated debt	$ 0	$ 0