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FAIR VALUE OF FINANCIAL INSTRUMENTS (Carrying Amount and Estimated Fair Values of Financial Instruments) (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
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Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Securities held to maturity | $ 336,700 | $ 366,700
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] |  |
Noninterest bearing demand accounts | 1,427,439 | 1,334,054
Federal funds purchased | 50,000 | 210,000
Federal Home Loan Bank of New York advances | 150,000 | 240,000
Carrying Amount |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Cash and due from banks | 13,577 | 13,078
Overnight deposits | 138,876 | 187,190
Securities held to maturity | 387,901 | 428,557
Loans, net | 6,538,718 | 5,970,803
Other investments |  |
FRB Stock | 11,410 | 11,410
FHLB Stock | 13,889 | 17,228
Disability Fund | 1,500 | 1,500
Time deposits at banks | 498 | 498
Accrued interest receivable | 33,948 | 33,209
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] |  |
Noninterest bearing demand accounts | 1,427,439 | 1,334,054
Money market and savings deposits | 5,240,511 | 4,523,522
Time deposits | 123,356 | 125,397
Federal funds purchased | 50,000 | 210,000
Federal Home Loan Bank of New York advances | 150,000 | 240,000
Trust preferred securities | 20,620 | 20,620
Accrued interest payable | 3,335 | 1,809
Secured and other borrowings | 17,366 | 7,441
Total Fair Value |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Cash and due from banks | 13,577 | 13,078
Overnight deposits | 138,876 | 187,190
Securities held to maturity | 336,694 | 366,719
Loans, net | 6,605,670 | 5,878,582
Other investments |  |
Disability Fund | 1,500 | 1,500
Time deposits at banks | 498 | 498
Accrued interest receivable | 33,948 | 33,209
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] |  |
Noninterest bearing demand accounts | 1,427,439 | 1,334,054
Money market and savings deposits | 5,240,511 | 4,523,522
Time deposits | 123,118 | 125,288
Federal funds purchased | 50,000 | 210,000
Federal Home Loan Bank of New York advances | 150,063 | 240,000
Trust preferred securities | 20,001 | 20,024
Accrued interest payable | 3,335 | 1,809
Secured and other borrowings | 17,366 | 7,441
Fair Value, Inputs, Level 1 |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Cash and due from banks | 13,577 | 13,078
Overnight deposits | 138,876 | 187,190
Other investments |  |
Time deposits at banks | 498 | 498
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] |  |
Noninterest bearing demand accounts | 1,427,439 | 1,334,054
Money market and savings deposits | 5,240,511 | 4,523,522
Accrued interest payable | 941 | 12
Fair Value, Inputs, Level 2 |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Securities held to maturity | 336,694 | 366,719
Other investments |  |
Disability Fund | 1,500 | 1,500
Accrued interest receivable | 2,258 | 2,105
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] |  |
Time deposits | 123,118 | 125,288
Federal funds purchased | 50,000 | 210,000
Federal Home Loan Bank of New York advances | 150,063 | 240,000
Accrued interest payable | 2,058 | 1,436
Secured and other borrowings | 17,366 | 7,441
Fair Value, Inputs, Level 3 |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Loans, net | 6,605,670 | 5,878,582
Other investments |  |
Accrued interest receivable | 31,690 | 31,104
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] |  |
Trust preferred securities | 20,001 | 20,024
Accrued interest payable | $ 336 | $ 361

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