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FAIR VALUE OF FINANCIAL INSTRUMENTS (Carrying Amount and Estimated Fair Values of Financial Instruments) (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
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Financial assets: |  |
Debt securities available for sale | $ 603,168 | $ 266,096
Securities held to maturity | 2,074 | 2,827
Other investments |  |
Other Investments | 11,998 | 11,597
Financial liabilities: |  |
Noninterest-bearing demand deposits | 2,803,823 | 1,726,135
Carrying Amount |  |
Financial assets: |  |
Cash and due from banks | 32,660 | 8,692
Overnight deposits | 1,824,820 | 855,613
Debt securities available for sale | 603,168 | 266,096
Securities held to maturity | 2,017 | 2,760
Equity investments | 2,289 | 2,313
Loans, net | 3,565,167 | 3,101,646
Other investments |  |
FRB Stock | 7,430 | 7,381
FHLB Stock | 3,070 | 2,718
Disability Fund | 1,000 | 1,000
Time deposits at banks | 498 |
CRA - CD |  | 498
Accrued interest receivable | 13,504 | 13,249
Financial liabilities: |  |
Noninterest-bearing demand deposits | 2,803,823 | 1,726,135
Money market and savings deposits | 2,571,707 | 2,011,409
Time deposits | 82,039 | 92,062
Trust preferred securities payable | 20,620 | 20,620
Subordinated debt, net of issuance cost | 24,698 | 24,657
Accrued interest payable | 448 | 712
Secured Borrowings | 35,559 | 36,964
Total Fair Value |  |
Financial assets: |  |
Cash and due from banks | 32,660 | 8,692
Overnight deposits | 1,824,820 | 855,613
Debt securities available for sale | 603,168 | 266,096
Securities held to maturity | 2,074 | 2,827
Equity investments | 2,289 | 2,313
Loans, net | 3,592,347 | 3,094,998
Other investments |  |
Disability Fund | 1,000 | 1,000
Time deposits at banks | 498 |
CRA - CD |  | 498
Accrued interest receivable | 13,504 | 13,429
Financial liabilities: |  |
Noninterest-bearing demand deposits | 2,803,823 | 1,726,135
Money market and savings deposits | 2,571,707 | 2,011,409
Time deposits | 82,610 | 93,157
Trust preferred securities payable | 20,002 | 20,011
Subordinated debt, net of issuance cost | 25,438 | 25,375
Accrued interest payable | 448 | 712
Secured Borrowings | 35,559 | 36,964
Interest Rate Cap | Carrying Amount |  |
Other investments |  |
Derivative Asset | 2,086 |
Interest rate cap derivative |  | 770
Interest Rate Cap | Total Fair Value |  |
Other investments |  |
Derivative Asset | 2,086 |
Interest rate cap derivative |  | 770
Fair Value, Inputs, Level 1 |  |
Financial assets: |  |
Cash and due from banks | 32,660 | 8,692
Overnight deposits | 1,824,820 | 855,613
Equity investments | 2,289 | 2,313
Other investments |  |
Time deposits at banks | 498 |
CRA - CD |  | 498
Financial liabilities: |  |
Noninterest-bearing demand deposits | 2,803,823 | 1,726,135
Money market and savings deposits | 2,571,707 | 2,011,409
Accrued interest payable | 3 | 7
Secured Borrowings | 0 |
Fair Value, Inputs, Level 2 |  |
Financial assets: |  |
Debt securities available for sale | 603,168 | 266,096
Securities held to maturity | 2,074 | 2,827
Other investments |  |
Disability Fund | 1,000 | 1,000
Accrued interest receivable | 717 | 414
Financial liabilities: |  |
Time deposits | 82,610 | 93,157
Subordinated debt, net of issuance cost | 25,438 | 25,375
Accrued interest payable | 337 | 591
Secured Borrowings | 35,559 | 36,964
Fair Value, Inputs, Level 2 | Interest Rate Cap |  |
Other investments |  |
Derivative Asset | 2,086 |
Interest rate cap derivative |  | 770
Fair Value, Inputs, Level 3 |  |
Financial assets: |  |
Loans, net | 3,592,347 | 3,094,998
Other investments |  |
Accrued interest receivable | 12,787 | 12,835
Financial liabilities: |  |
Trust preferred securities payable | 20,002 | 20,011
Accrued interest payable | 108 | $ 114
Secured Borrowings | $ 0 |

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