LOANS AND ALLOWANCE FOR CREDIT LOSSES (Schedule of Loans by Allowance measurement Method) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Loans and Leases Receivable Disclosure [Line Items]
Individually assessed, Allowance for credit losses	$ 5,192	$ 5,066
Collectively assessed, Allowance for credit losses	53,346	52,899
Total ending allowance balance	58,538	57,965	$ 47,752	$ 44,876
Individually assessed, Loans	82,479	68,932
Collectively assessed, Loans	5,653,649	5,573,080
Total ending loan balance	5,736,128	5,642,012
Commercial
Loans and Leases Receivable Disclosure [Line Items]
Total ending loan balance	3,951,071	3,857,711
Construction
Loans and Leases Receivable Disclosure [Line Items]
Total ending loan balance	150,257	153,512
Multi-family
Loans and Leases Receivable Disclosure [Line Items]
Total ending loan balance	467,979	467,536
One-to-four-family
Loans and Leases Receivable Disclosure [Line Items]
Total ending loan balance	93,264	94,704
Real Estate
Loans and Leases Receivable Disclosure [Line Items]
Total ending loan balance	4,662,571	4,573,463
Real Estate | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Collectively assessed, Allowance for credit losses	36,704	35,635
Total ending allowance balance	36,704	35,635	31,836	29,496
Individually assessed, Loans	24,000	40,955
Collectively assessed, Loans	3,927,071	3,816,756
Total ending loan balance	3,951,071	3,857,711
Real Estate | Construction
Loans and Leases Receivable Disclosure [Line Items]
Collectively assessed, Allowance for credit losses	1,712	1,765
Total ending allowance balance	1,712	1,765	1,261	1,983
Collectively assessed, Loans	150,257	153,512
Total ending loan balance	150,257	153,512
Real Estate | Multi-family
Loans and Leases Receivable Disclosure [Line Items]
Individually assessed, Allowance for credit losses	5,002	5,002
Collectively assessed, Allowance for credit losses	3,169	3,213
Total ending allowance balance	8,171	8,215	2,871	2,823
Individually assessed, Loans	51,239	20,939
Collectively assessed, Loans	416,740	446,597
Total ending loan balance	467,979	467,536
Real Estate | One-to-four-family
Loans and Leases Receivable Disclosure [Line Items]
Collectively assessed, Allowance for credit losses	521	663
Total ending allowance balance	521	663	407	105
Collectively assessed, Loans	93,264	94,704
Total ending loan balance	93,264	94,704
Commercial & industrial
Loans and Leases Receivable Disclosure [Line Items]
Collectively assessed, Allowance for credit losses	10,937	11,207
Total ending allowance balance	10,937	11,207	10,757	10,274
Individually assessed, Loans	6,989	6,934
Collectively assessed, Loans	1,050,499	1,044,529
Total ending loan balance	1,057,488	1,051,463
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Individually assessed, Allowance for credit losses	190	64
Collectively assessed, Allowance for credit losses	303	416
Total ending allowance balance	493	480	$ 620	$ 195
Individually assessed, Loans	251	104
Collectively assessed, Loans	15,818	16,982
Total ending loan balance	$ 16,069	$ 17,086