LOANS AND ALLOWANCE FOR CREDIT LOSSES - Risk Ratings by Category of Loans (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Accounts Notes And Loans Receivable [Line Items]
2023	$ 1,375,540,000
2022	2,514,292,000
2021	1,459,501,000
2020	649,499,000
2019	466,326,000
Prior	556,162,000
Revolving Loans	843,193,000
Revolving Loans Converted to Term Loans	60,620,000
Total loans	7,925,133,000	$ 7,754,751,000
Current period gross charge-offs
2023	0
2022	839,000
2021	4,009,000
2020	796,000
2019	280,000
Prior	23,000
Revolving Loans	4,194,000
Revolving Loans Converted to Term Loans	2,275,000
Total	12,416,000
Pass
Accounts Notes And Loans Receivable [Line Items]
2023	1,354,661,000
2022	2,481,658,000
2021	1,400,138,000
2020	621,225,000
2019	443,190,000
Prior	531,981,000
Revolving Loans	826,264,000
Revolving Loans Converted to Term Loans	55,258,000
Total loans	7,714,375,000	7,566,910,000
Special Mention
Accounts Notes And Loans Receivable [Line Items]
2023	10,996,000
2022	17,364,000
2021	20,106,000
2020	16,379,000
2019	1,534,000
Prior	4,645,000
Revolving Loans	6,625,000
Revolving Loans Converted to Term Loans	362,000
Total loans	78,011,000	42,175,000
Substandard
Accounts Notes And Loans Receivable [Line Items]
2023	9,835,000
2022	15,270,000
2021	39,257,000
2020	11,895,000
2019	21,602,000
Prior	19,536,000
Revolving Loans	10,304,000
Revolving Loans Converted to Term Loans	5,000,000
Total loans	132,699,000	145,612,000
Doubtful
Accounts Notes And Loans Receivable [Line Items]
2023	48,000
2022	0
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total loans	48,000	54,000
Commercial and industrial
Accounts Notes And Loans Receivable [Line Items]
2023	303,545,000
2022	266,437,000
2021	165,873,000
2020	42,881,000
2019	37,352,000
Prior	19,062,000
Revolving Loans	540,052,000
Revolving Loans Converted to Term Loans	33,800,000
Total loans	1,409,002,000	1,455,795,000
Current period gross charge-offs
2023	0
2022	549,000
2021	4,009,000
2020	796,000
2019	280,000
Prior	0
Revolving Loans	4,193,000
Revolving Loans Converted to Term Loans	773,000
Total	10,600,000
Commercial and industrial | Pass
Accounts Notes And Loans Receivable [Line Items]
2023	301,765,000
2022	260,052,000
2021	163,930,000
2020	41,778,000
2019	25,436,000
Prior	18,802,000
Revolving Loans	533,531,000
Revolving Loans Converted to Term Loans	31,824,000
Total loans	1,377,118,000	1,400,191,000
Commercial and industrial | Special Mention
Accounts Notes And Loans Receivable [Line Items]
2023	121,000
2022	2,708,000
2021	491,000
2020	407,000
2019	358,000
Prior	0
Revolving Loans	4,169,000
Revolving Loans Converted to Term Loans	86,000
Total loans	8,340,000	18,982,000
Commercial and industrial | Substandard
Accounts Notes And Loans Receivable [Line Items]
2023	1,611,000
2022	3,677,000
2021	1,452,000
2020	696,000
2019	11,558,000
Prior	260,000
Revolving Loans	2,352,000
Revolving Loans Converted to Term Loans	1,890,000
Total loans	23,496,000	36,568,000
Commercial and industrial | Doubtful
Accounts Notes And Loans Receivable [Line Items]
2023	48,000
2022
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total loans	48,000	54,000
Paycheck Protection Program (PPP)
Accounts Notes And Loans Receivable [Line Items]
2023	0
2022	0
2021	2,755,000
2020	2,345,000
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total loans	5,100,000	13,226,000
Current period gross charge-offs
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	0
Paycheck Protection Program (PPP) | Pass
Accounts Notes And Loans Receivable [Line Items]
2023	0
2022	0
2021	2,755,000
2020	2,345,000
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total loans	5,100,000	13,226,000
Paycheck Protection Program (PPP) | Special Mention
Accounts Notes And Loans Receivable [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total loans	0	0
Paycheck Protection Program (PPP) | Substandard
Accounts Notes And Loans Receivable [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total loans	0	0
Paycheck Protection Program (PPP) | Doubtful
Accounts Notes And Loans Receivable [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total loans	0	0
Real estate | Commercial real estate (including multi-family residential)
Accounts Notes And Loans Receivable [Line Items]
2023	435,678,000
2022	1,330,811,000
2021	907,415,000
2020	462,961,000
2019	343,488,000
Prior	444,698,000
Revolving Loans	134,109,000
Revolving Loans Converted to Term Loans	12,647,000
Total loans	4,071,807,000	3,931,480,000
Current period gross charge-offs
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	0
Real estate | Commercial real estate (including multi-family residential) | Pass
Accounts Notes And Loans Receivable [Line Items]
2023	421,800,000
2022	1,315,088,000
2021	874,084,000
2020	439,365,000
2019	337,674,000
Prior	427,103,000
Revolving Loans	132,261,000
Revolving Loans Converted to Term Loans	12,300,000
Total loans	3,959,675,000	3,844,951,000
Real estate | Commercial real estate (including multi-family residential) | Special Mention
Accounts Notes And Loans Receivable [Line Items]
2023	9,791,000
2022	9,551,000
2021	14,255,000
2020	14,139,000
2019	847,000
Prior	4,139,000
Revolving Loans	1,761,000
Revolving Loans Converted to Term Loans	0
Total loans	54,483,000	18,183,000
Real estate | Commercial real estate (including multi-family residential) | Substandard
Accounts Notes And Loans Receivable [Line Items]
2023	4,087,000
2022	6,172,000
2021	19,076,000
2020	9,457,000
2019	4,967,000
Prior	13,456,000
Revolving Loans	87,000
Revolving Loans Converted to Term Loans	347,000
Total loans	57,649,000	68,346,000
Real estate | Commercial real estate (including multi-family residential) | Doubtful
Accounts Notes And Loans Receivable [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total loans	0	0
Real estate | Commercial real estate construction and land development
Accounts Notes And Loans Receivable [Line Items]
2023	292,119,000
2022	530,257,000
2021	147,184,000
2020	21,764,000
2019	10,057,000
Prior	4,800,000
Revolving Loans	53,368,000
Revolving Loans Converted to Term Loans	857,000
Total loans	1,060,406,000	1,037,678,000
Current period gross charge-offs
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	0
Real estate | Commercial real estate construction and land development | Pass
Accounts Notes And Loans Receivable [Line Items]
2023	289,698,000
2022	523,742,000
2021	129,927,000
2020	21,601,000
2019	9,978,000
Prior	4,311,000
Revolving Loans	53,233,000
Revolving Loans Converted to Term Loans	299,000
Total loans	1,032,789,000	1,025,141,000
Real estate | Commercial real estate construction and land development | Special Mention
Accounts Notes And Loans Receivable [Line Items]
2023	210,000
2022	4,962,000
2021	4,076,000
2020	0
2019	0
Prior	489,000
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total loans	9,737,000	832,000
Real estate | Commercial real estate construction and land development | Substandard
Accounts Notes And Loans Receivable [Line Items]
2023	2,211,000
2022	1,553,000
2021	13,181,000
2020	163,000
2019	79,000
Prior	0
Revolving Loans	135,000
Revolving Loans Converted to Term Loans	558,000
Total loans	17,880,000	11,705,000
Real estate | Commercial real estate construction and land development | Doubtful
Accounts Notes And Loans Receivable [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total loans	0	0
Real estate | 1-4 family residential (including home equity)
Accounts Notes And Loans Receivable [Line Items]
2023	170,518,000
2022	265,497,000
2021	224,395,000
2020	113,676,000
2019	74,830,000
Prior	86,895,000
Revolving Loans	98,604,000
Revolving Loans Converted to Term Loans	12,759,000
Total loans	1,047,174,000	1,000,956,000
Current period gross charge-offs
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	23,000
Revolving Loans	0
Revolving Loans Converted to Term Loans	1,502,000
Total	1,525,000
Real estate | 1-4 family residential (including home equity) | Pass
Accounts Notes And Loans Receivable [Line Items]
2023	167,718,000
2022	262,920,000
2021	219,584,000
2020	110,264,000
2019	69,534,000
Prior	81,062,000
Revolving Loans	90,227,000
Revolving Loans Converted to Term Loans	10,434,000
Total loans	1,011,743,000	969,396,000
Real estate | 1-4 family residential (including home equity) | Special Mention
Accounts Notes And Loans Receivable [Line Items]
2023	874,000
2022	121,000
2021	1,284,000
2020	1,833,000
2019	329,000
Prior	17,000
Revolving Loans	650,000
Revolving Loans Converted to Term Loans	276,000
Total loans	5,384,000	3,714,000
Real estate | 1-4 family residential (including home equity) | Substandard
Accounts Notes And Loans Receivable [Line Items]
2023	1,926,000
2022	2,456,000
2021	3,527,000
2020	1,579,000
2019	4,967,000
Prior	5,816,000
Revolving Loans	7,727,000
Revolving Loans Converted to Term Loans	2,049,000
Total loans	30,047,000	27,846,000
Real estate | 1-4 family residential (including home equity) | Doubtful
Accounts Notes And Loans Receivable [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total loans	0	0
Real estate | Residential construction
Accounts Notes And Loans Receivable [Line Items]
2023	139,993,000
2022	113,390,000
2021	7,969,000
2020	4,062,000
2019	0
Prior	494,000
Revolving Loans	1,449,000
Revolving Loans Converted to Term Loans	0
Total loans	267,357,000	268,150,000
Current period gross charge-offs
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	0
Real estate | Residential construction | Pass
Accounts Notes And Loans Receivable [Line Items]
2023	139,993,000
2022	112,013,000
2021	6,058,000
2020	4,062,000
2019	0
Prior	494,000
Revolving Loans	1,449,000
Revolving Loans Converted to Term Loans	0
Total loans	264,069,000	266,943,000
Real estate | Residential construction | Special Mention
Accounts Notes And Loans Receivable [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total loans	0	421,000
Real estate | Residential construction | Substandard
Accounts Notes And Loans Receivable [Line Items]
2023	0
2022	1,377,000
2021	1,911,000
2020	0
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total loans	3,288,000	786,000
Real estate | Residential construction | Doubtful
Accounts Notes And Loans Receivable [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total loans	0	0
Consumer and other
Accounts Notes And Loans Receivable [Line Items]
2023	33,687,000
2022	7,900,000
2021	3,910,000
2020	1,810,000
2019	599,000
Prior	213,000
Revolving Loans	15,611,000
Revolving Loans Converted to Term Loans	557,000
Total loans	64,287,000	47,466,000
Current period gross charge-offs
2023	0
2022	290,000
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	1,000
Revolving Loans Converted to Term Loans	0
Total	291,000
Consumer and other | Pass
Accounts Notes And Loans Receivable [Line Items]
2023	33,687,000
2022	7,843,000
2021	3,800,000
2020	1,810,000
2019	568,000
Prior	209,000
Revolving Loans	15,563,000
Revolving Loans Converted to Term Loans	401,000
Total loans	63,881,000	47,062,000
Consumer and other | Special Mention
Accounts Notes And Loans Receivable [Line Items]
2023	0
2022	22,000
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	45,000
Revolving Loans Converted to Term Loans	0
Total loans	67,000	43,000
Consumer and other | Substandard
Accounts Notes And Loans Receivable [Line Items]
2023	0
2022	35,000
2021	110,000
2020	0
2019	31,000
Prior	4,000
Revolving Loans	3,000
Revolving Loans Converted to Term Loans	156,000
Total loans	339,000	361,000
Consumer and other | Doubtful
Accounts Notes And Loans Receivable [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total loans	$ 0	$ 0