LOANS AND ALLOWANCE FOR LOAN LOSSES (Schedule of Past Due Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 14,961	$ 3,144
Loans not Past Due	2,882,331	2,674,775
Total loans	2,897,292	2,677,919
30 - 59 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,486	982
60 - 89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	27	14
Greater than 90 days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	8,448	2,148
Real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	2,396,810	2,157,344
Real estate | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,400
Loans not Past Due	1,869,364	1,668,236
Total loans	1,875,764	1,668,236
Real estate | Commercial | 30 - 59 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,400
Real estate | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans not Past Due	59,378	30,827
Total loans	59,378	30,827
Real estate | Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans not Past Due	393,342	375,611
Total loans	393,342	375,611
Real estate | One to four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans not Past Due	68,326	82,670
Total loans	68,326	82,670
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,556	1,801
Loans not Past Due	437,709	446,818
Total loans	444,265	448,619
Commercial and industrial | 30 - 59 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	18	346
Commercial and industrial | 60 - 89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2
Commercial and industrial | Greater than 90 days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,536	1,455
Commercial and industrial | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	444,265	448,619
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,005	1,343
Loans not Past Due	54,212	70,613
Total loans	56,217	71,956
Consumer | 30 - 59 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	68	636
Consumer | 60 - 89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	25	14
Consumer | Greater than 90 days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,912	693
Consumer | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	$ 56,217	$ 71,956