LOANS AND ALLOWANCE FOR CREDIT LOSSES ON LOANS - Summary of Accounts Receivable, Allowance for Credit Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 1,786,046	$ 1,548,133	$ 1,786,046	$ 1,548,133	$ 1,751,459
Current period gross charge-offs
Total	0	0	0	0
Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
Total					1,732,156
OAEM
Financing Receivable, Allowance for Credit Loss [Line Items]
Total					3,027
Substandard
Financing Receivable, Allowance for Credit Loss [Line Items]
Total					16,276
Doubtful
Financing Receivable, Allowance for Credit Loss [Line Items]
Total					0
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	1,124		1,124
2022	2,010		2,010
2021	156		156
2020	3,453		3,453
Prior	8,313		8,313
Revolving Loans at Amortized Cost Basis	17,320		17,320
Total	32,376	35,739	32,376	35,739	32,383
Current period gross charge-offs
2023			0
2022			0
2021			0
2020			0
Prior			0
Revolving Loans at Amortized Cost Basis			0
Total	0	0	0	0
Commercial and Industrial | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	1,124		1,124
2022	2,010		2,010
2021	156		156
2020	3,453		3,453
Prior	8,123		8,123
Revolving Loans at Amortized Cost Basis	17,320		17,320
Total	32,186		32,186		32,383
Commercial and Industrial | OAEM
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans at Amortized Cost Basis	0		0
Total	0		0		0
Commercial and Industrial | Substandard
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	190		190
Revolving Loans at Amortized Cost Basis	0		0
Total	190		190		0
Commercial and Industrial | Doubtful
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans at Amortized Cost Basis	0		0
Total	0		0		0
Construction
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	326		326
2022	4,147		4,147
2021	4,466		4,466
2020	195		195
Prior	0		0
Revolving Loans at Amortized Cost Basis	175,023		175,023
Total	184,157	146,806	184,157	146,806	192,357
Current period gross charge-offs
2023			0
2022			0
2021			0
2020			0
Prior			0
Revolving Loans at Amortized Cost Basis			0
Total	0	0	0	0
Construction | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	326		326
2022	4,147		4,147
2021	4,466		4,466
2020	195		195
Prior	0		0
Revolving Loans at Amortized Cost Basis	173,932		173,932
Total	183,066		183,066		191,266
Construction | OAEM
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans at Amortized Cost Basis	0		0
Total	0		0		0
Construction | Substandard
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans at Amortized Cost Basis	1,091		1,091
Total	1,091		1,091		1,091
Construction | Doubtful
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans at Amortized Cost Basis	0		0
Total	0		0		0
Real Estate Mortgage | Commercial – Owner Occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	18,811		18,811
2022	34,193		34,193
2021	13,306		13,306
2020	7,243		7,243
Prior	58,727		58,727
Revolving Loans at Amortized Cost Basis	10,799		10,799
Total	143,079	128,782	143,079	128,782	125,950
Current period gross charge-offs
2023			0
2022			0
2021			0
2020			0
Prior			0
Revolving Loans at Amortized Cost Basis			0
Total	0	0	0	0
Real Estate Mortgage | Commercial – Non-owner Occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	6,503		6,503
2022	100,155		100,155
2021	38,659		38,659
2020	34,698		34,698
Prior	195,352		195,352
Revolving Loans at Amortized Cost Basis	449		449
Total	375,816	325,135	375,816	325,135	377,452
Current period gross charge-offs
2023			0
2022			0
2021			0
2020			0
Prior			0
Revolving Loans at Amortized Cost Basis			0
Total	0	0	0	0
Real Estate Mortgage | Residential – 1 to 4 Family
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	31,510		31,510
2022	120,270		120,270
2021	64,194		64,194
2020	34,168		34,168
Prior	194,597		194,597
Revolving Loans at Amortized Cost Basis	1,160		1,160
Total	445,899	392,771	445,899	392,771	444,820
Current period gross charge-offs
2023			0
2022			0
2021			0
2020			0
Prior			0
Revolving Loans at Amortized Cost Basis			0
Total	0	0	0	0
Real Estate Mortgage | Residential – 1 to 4 Family | Performing
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	31,510		31,510
2022	120,270		120,270
2021	64,194		64,194
2020	34,168		34,168
Prior	194,597		194,597
Revolving Loans at Amortized Cost Basis	1,160		1,160
Total	445,899		445,899
Real Estate Mortgage | Residential – 1 to 4 Family | Nonperforming
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans at Amortized Cost Basis	0		0
Total	0		0
Real Estate Mortgage | Residential – 1 to 4 Family Investment
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	40,719		40,719
2022	143,539		143,539
2021	121,497		121,497
2020	52,990		52,990
Prior	141,332		141,332
Revolving Loans at Amortized Cost Basis	0		0
Total	500,077	433,733	500,077	433,733	476,210
Current period gross charge-offs
2023			0
2022			0
2021			0
2020			0
Prior			0
Revolving Loans at Amortized Cost Basis			0
Total	0	0	0	0
Real Estate Mortgage | Residential – 1 to 4 Family Investment | Performing
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	40,719		40,719
2022	143,539		143,539
2021	121,497		121,497
2020	52,990		52,990
Prior	141,332		141,332
Revolving Loans at Amortized Cost Basis	0		0
Total	500,077		500,077
Real Estate Mortgage | Residential – 1 to 4 Family Investment | Nonperforming
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans at Amortized Cost Basis	0		0
Total	0		0
Real Estate Mortgage | Residential – Multifamily
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	498		498
2022	5,286		5,286
2021	27,340		27,340
2020	14,376		14,376
Prior	51,021		51,021
Revolving Loans at Amortized Cost Basis	0		0
Total	98,521	77,797	98,521	77,797	95,556
Current period gross charge-offs
2023			0
2022			0
2021			0
2020			0
Prior			0
Revolving Loans at Amortized Cost Basis			0
Total	0	0	0	0
Real Estate Mortgage | Pass | Commercial – Owner Occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	18,811		18,811
2022	34,193		34,193
2021	13,306		13,306
2020	7,243		7,243
Prior	57,610		57,610
Revolving Loans at Amortized Cost Basis	10,799		10,799
Total	141,962		141,962		122,523
Real Estate Mortgage | Pass | Commercial – Non-owner Occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	6,503		6,503
2022	100,155		100,155
2021	38,659		38,659
2020	34,698		34,698
Prior	178,199		178,199
Revolving Loans at Amortized Cost Basis	449		449
Total	358,663		358,663		362,899
Real Estate Mortgage | Pass | Residential – 1 to 4 Family
Financing Receivable, Allowance for Credit Loss [Line Items]
Total					444,658
Real Estate Mortgage | Pass | Residential – 1 to 4 Family Investment
Financing Receivable, Allowance for Credit Loss [Line Items]
Total					476,210
Real Estate Mortgage | Pass | Residential – Multifamily
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	498		498
2022	5,286		5,286
2021	27,340		27,340
2020	14,376		14,376
Prior	51,021		51,021
Revolving Loans at Amortized Cost Basis	0		0
Total	98,521		98,521		95,556
Real Estate Mortgage | OAEM | Commercial – Owner Occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans at Amortized Cost Basis	0		0
Total	0		0		3,027
Real Estate Mortgage | OAEM | Commercial – Non-owner Occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans at Amortized Cost Basis	0		0
Total	0		0		0
Real Estate Mortgage | OAEM | Residential – 1 to 4 Family
Financing Receivable, Allowance for Credit Loss [Line Items]
Total					0
Real Estate Mortgage | OAEM | Residential – 1 to 4 Family Investment
Financing Receivable, Allowance for Credit Loss [Line Items]
Total					0
Real Estate Mortgage | OAEM | Residential – Multifamily
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans at Amortized Cost Basis	0		0
Total	0		0		0
Real Estate Mortgage | Substandard | Commercial – Owner Occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	1,117		1,117
Revolving Loans at Amortized Cost Basis	0		0
Total	1,117		1,117		400
Real Estate Mortgage | Substandard | Commercial – Non-owner Occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	17,153		17,153
Revolving Loans at Amortized Cost Basis	0		0
Total	17,153		17,153		14,553
Real Estate Mortgage | Substandard | Residential – 1 to 4 Family
Financing Receivable, Allowance for Credit Loss [Line Items]
Total					162
Real Estate Mortgage | Substandard | Residential – 1 to 4 Family Investment
Financing Receivable, Allowance for Credit Loss [Line Items]
Total					0
Real Estate Mortgage | Substandard | Residential – Multifamily
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans at Amortized Cost Basis	0		0
Total	0		0		0
Real Estate Mortgage | Doubtful | Commercial – Owner Occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans at Amortized Cost Basis	0		0
Total	0		0		0
Real Estate Mortgage | Doubtful | Commercial – Non-owner Occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans at Amortized Cost Basis	0		0
Total	0		0		0
Real Estate Mortgage | Doubtful | Residential – 1 to 4 Family
Financing Receivable, Allowance for Credit Loss [Line Items]
Total					0
Real Estate Mortgage | Doubtful | Residential – 1 to 4 Family Investment
Financing Receivable, Allowance for Credit Loss [Line Items]
Total					0
Real Estate Mortgage | Doubtful | Residential – Multifamily
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans at Amortized Cost Basis	0		0
Total	0		0		0
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	6,105		6,105
Revolving Loans at Amortized Cost Basis	16		16
Total	6,121	7,370	6,121	7,370	6,731
Current period gross charge-offs
2023			0
2022			0
2021			0
2020			0
Prior			0
Revolving Loans at Amortized Cost Basis			0
Total	0	$ 0	0	$ 0
Consumer | Performing
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	6,105		6,105
Revolving Loans at Amortized Cost Basis	16		16
Total	6,121		6,121
Consumer | Nonperforming
Financing Receivable, Allowance for Credit Loss [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
Prior	0		0
Revolving Loans at Amortized Cost Basis	0		0
Total	$ 0		$ 0
Consumer | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
Total					6,661
Consumer | OAEM
Financing Receivable, Allowance for Credit Loss [Line Items]
Total					0
Consumer | Substandard
Financing Receivable, Allowance for Credit Loss [Line Items]
Total					70
Consumer | Doubtful
Financing Receivable, Allowance for Credit Loss [Line Items]
Total					$ 0