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LOANS AND ALLOWANCE FOR LOAN LOSSES (Schedule of Past Due Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 33,538	$ 30,294
Loans not Past Due	3,422,288	3,112,025
Total loans	3,455,826	3,142,319
30 - 59 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	18,062	7,489
60 - 89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	9,985	16,416
Greater than 90 days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,491	6,389
Real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	2,816,849	2,504,388
Real estate | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	9,984	10,024
Loans not Past Due	2,176,324	1,877,481
Total loans	2,186,308	1,887,505
Real estate | Commercial | 30 - 59 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	9,984	40
Real estate | Commercial | 60 - 89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		9,984
Real estate | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans not Past Due	139,992	112,290
Total loans	139,992	112,290
Real estate | Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans not Past Due	426,716	433,239
Total loans	426,716	433,239
Real estate | One to four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		2,908
Loans not Past Due	63,833	68,446
Total loans	63,833	71,354
Real estate | One to four family | 30 - 59 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		2,908
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	21,340	15,021
Loans not Past Due	579,505	576,479
Total loans	600,845	591,500
Commercial and industrial | 30 - 59 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	8,044	4,429
Commercial and industrial | 60 - 89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	9,959	6,400
Commercial and industrial | Greater than 90 days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,337	4,192
Consumer.
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,214	2,341
Loans not Past Due	35,918	44,090
Total loans	38,132	46,431
Consumer. | 30 - 59 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	34	112
Consumer. | 60 - 89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	26	32
Consumer. | Greater than 90 days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 2,154	$ 2,197

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