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LOANS AND ALLOWANCE FOR LOAN LOSSES (Schedule of Loans by Impairment Method) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Individually evaluated, Allowance for loan losses	$ 4,320		$ 4,918
Collectively evaluated, Allowance for loan losses	33,057		30,489
Total ending allowance balance	37,377	$ 35,502	35,407	$ 32,505	$ 30,924	$ 26,272
Individually evaluated for impairment, Loans	16,797		17,733
Collectively evaluated for impairment, Loans	3,439,029		3,124,586
Total ending loan balance	3,455,826		3,142,319
Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total ending loan balance	2,816,849		2,504,388
Real estate | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Collectively evaluated, Allowance for loan losses	20,299		17,243
Total ending allowance balance	20,299	18,341	17,243	18,690	17,369	15,317
Individually evaluated for impairment, Loans	10,336		10,345
Collectively evaluated for impairment, Loans	2,175,972		1,877,160
Total ending loan balance	2,186,308		1,887,505
Real estate | Construction
Loans and Leases Receivable Disclosure [Line Items]
Collectively evaluated, Allowance for loan losses	1,972		1,593
Total ending allowance balance	1,972	1,707	1,593	741	620	411
Collectively evaluated for impairment, Loans	139,992		112,290
Total ending loan balance	139,992		112,290
Real estate | Multi-family
Loans and Leases Receivable Disclosure [Line Items]
Collectively evaluated, Allowance for loan losses	2,618		2,661
Total ending allowance balance	2,618	2,732	2,661	2,739	2,708	2,453
Collectively evaluated for impairment, Loans	426,716		433,239
Total ending loan balance	426,716		433,239
Real estate | One to four family
Loans and Leases Receivable Disclosure [Line Items]
Individually evaluated, Allowance for loan losses	41		53
Collectively evaluated, Allowance for loan losses	128		153
Total ending allowance balance	169	178	206	242	203	267
Individually evaluated for impairment, Loans	970		999
Collectively evaluated for impairment, Loans	62,863		70,355
Total ending loan balance	63,833		71,354
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Individually evaluated, Allowance for loan losses	2,814		3,662
Collectively evaluated, Allowance for loan losses	7,731		8,461
Total ending allowance balance	10,545	10,827	12,123	9,132		7,070
Individually evaluated for impairment, Loans	3,337		4,192
Collectively evaluated for impairment, Loans	597,508		587,308
Total ending loan balance	600,845		591,500
Consumer.
Loans and Leases Receivable Disclosure [Line Items]
Individually evaluated, Allowance for loan losses	1,465		1,203
Collectively evaluated, Allowance for loan losses	309		378
Total ending allowance balance	1,774	$ 1,717	1,581	$ 961	$ 531	$ 754
Individually evaluated for impairment, Loans	2,154		2,197
Collectively evaluated for impairment, Loans	35,978		44,234
Total ending loan balance	$ 38,132		$ 46,431

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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