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LOANS AND ALLOWANCE FOR LOAN LOSSES (Schedule of Loan Receivables) (Details) - USD ($)	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Loans and Leases Receivable Disclosure [Line Items]
Total loans	$ 4,386,101,000		$ 3,739,527,000
Deferred fees, net of origination costs	(10,936,000)		(7,598,000)
Loans, net of deferred fees and costs	4,375,165,000		3,731,929,000
Allowance for loan losses	(40,534,000)	$ (38,134,000)	(34,729,000)	$ (37,377,000)	$ (35,502,000)	$ (35,407,000)
Net loans	4,334,631,000		3,697,200,000
Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans	3,577,767,000		3,052,626,000
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Total loans	780,677,000		654,535,000
Allowance for loan losses	(9,144,000)	(8,488,000)	(7,708,000)	(10,545,000)	(10,827,000)	(12,123,000)
Loan held for sale	10,000,000.0		4,100,000
Commercial and industrial \| Paycheck Protection Program loans
Loans and Leases Receivable Disclosure [Line Items]
Net loans	125,000		561,000
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total loans	27,657,000		32,366,000
Allowance for loan losses	(217,000)	(237,000)	(404,000)	(1,774,000)	(1,717,000)
Commercial \| Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans	2,922,190,000		2,488,382,000
Allowance for loan losses	(25,945,000)	(24,720,000)	(22,216,000)	(20,299,000)	(18,341,000)	(17,243,000)
Construction \| Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans	185,661,000		151,791,000
Allowance for loan losses	(2,587,000)	(2,329,000)	(2,105,000)	(1,972,000)	(1,707,000)	(1,593,000)
Consumer.
Loans and Leases Receivable Disclosure [Line Items]
Allowance for loan losses				(1,774,000)		(1,581,000)
Multifamily \| Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans	418,726,000		355,290,000
Allowance for loan losses	(2,539,000)	(2,256,000)	(2,156,000)	(2,618,000)	(2,732,000)	(2,661,000)
One to four family \| Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans	51,190,000		57,163,000
Allowance for loan losses	$ (102,000)	$ (104,000)	$ (140,000)	$ (169,000)	$ (178,000)	$ (206,000)