BORROWINGS (Advances from the FHLB) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank of New York advances	$ 144,000	$ 185,000
Maturing in 2020, fixed rate at rates from 1.86% to 2.09%, weighted averaging 2.02%
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank of New York advances	$ 144,000
Maturing in 2019, fixed rate at rates from 2.47% to 2.73%, weighted averaging 2.64%
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank of New York advances		$ 185,000