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LOANS AND ALLOWANCE FOR LOAN LOSSES (Schedule of Past Due Loans) (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | $ 19,234 | $ 30,294
Loans not Past Due | 3,223,879 | 3,112,025
Total loans | 3,243,113 | 3,142,319
30 - 59 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 7,349 | 7,489
60 - 89 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 6,421 | 16,416
Greater than 90 days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 5,464 | 6,389
Real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total loans | 2,614,105 | 2,504,388
Real estate | Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 3,360 | 10,024
Loans not Past Due | 1,977,858 | 1,877,481
Total loans | 1,981,218 | 1,887,505
Real estate | Commercial | 30 - 59 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 3,360 | 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 | 121,122 | 112,290
Total loans | 121,122 | 112,290
Real estate | Multi-family |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans not Past Due | 445,284 | 433,239
Total loans | 445,284 | 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 | 66,481 | 68,446
Total loans | 66,481 | 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 | 13,678 | 15,021
Loans not Past Due | 573,414 | 576,479
Total loans | 587,092 | 591,500
Commercial and industrial | 30 - 59 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 3,941 | 4,429
Commercial and industrial | 60 - 89 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 6,400 | 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 | 2,196 | 2,341
Loans not Past Due | 39,720 | 44,090
Total loans | 41,916 | 46,431
Consumer | 30 - 59 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 48 | 112
Consumer | 60 - 89 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 21 | 32
Consumer | Greater than 90 days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | $ 2,127 | $ 2,197

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